Calculation of concrete volume for various types of foundations. Calculation of concrete volume for various types of foundations Marking according to GOST. how to read symbols correctly

The installation of a sewerage system and a well is a prerequisite in private and multi-storey buildings. Such structures are subject to certain requirements, so they must fully comply with sanitary and hygienic standards. In addition, when installing a well treatment system for a country house, any person expects that the structure will last for decades, serving faithfully.

Therefore, the optimal solution when performing such work would be to install a concrete ring. This product is made of strong and durable material that can last almost forever, provided that the ring is correctly selected and the installation is carried out in compliance with all requirements. Therefore, it makes sense to consider the features of concrete rings, understand the size range and installation methods.

What types of rings are there? Types and purpose

Well rings are round reinforced concrete structures used for arranging utility lines buried below ground level. Depending on the structure being constructed, the following types of rings are used:

Sewage and water intake.

Products for laying underground cable electrical networks.

Collectors.

Gas pipelines and water intakes.

In addition, there are the following varieties on the market:

Rings with flat and locking ends.

Repair.

Additional ones.

Regardless of the type and purpose, products are made of heavy concrete, grades 200-500, reinforcement is being performed.

Production technology

Rings for wells are made from hard concrete, which is poured into the formwork. It is necessary to clarify that the reinforcement is first made from steel wire with a diameter 8-12 mm. Two vertical rods are installed at opposite ends of the structure, which act as lugs for lifting the ring.

The mold is compacted using vibration to prevent the formation of voids. The formwork is removed one day after pouring the concrete. After this, the finished products are stored in open areas. Tempering strength of the ring ( 50% of the given) is gained in approximately 7 days. Full concrete strength is achieved after 28 days.

Advantages and disadvantages of reinforced concrete rings

It's no secret that any building material has its strengths and weaknesses. This feature also applies to finished products. Concrete rings seem ideal, but even they are not without some drawbacks.

The undeniable advantages of reinforced concrete rings include the following:

High quality at an affordable price.

Wide range of sizes.

The ability to quickly install a water supply and sewerage system.

High tightness: tight fit of the seams prevents groundwater from entering the structure.

Long service life: reinforced concrete is neutral to any environment, so it can last at least 100 years.

Structural rigidity: wells made of concrete rings can be installed even on unstable soil.

Obvious disadvantages include the following:

Dimensions and weight: it is impossible to install a concrete ring without the use of construction equipment, which somewhat increases the cost of installation.

Lack of mobility: it is very difficult to move such a well.

You can see that there are more positive features, which explains the steadily growing popularity of concrete rings.

Marking according to GOST. How to read symbols correctly

Each reinforced concrete ring has a marking that determines the scope of application of the product. The symbols correspond to GOST standards, it looks like this:

KLK- products intended for the installation of drains and urban storm sewers.

KVG- rings used for installation of gas pipelines and water wells.

KO- a support ring that forms the foundation of the well.

KS- wall models installed in limited spaces.

KFC- drainage systems and collector networks.

In addition, the ring markings also contain numerical designations.

Decryption example:

KS-7-9. This means a wall ring with wall thickness 70 and height 900 mm.

Standard sizes of reinforced concrete rings

Concrete rings are available in a very diverse range of sizes. Standard product sizes look like this:

Height: 10-100 cm.

Wall thickness: 70-120 mm.

Inner diameter: 70-200 cm.

Specific gravity: 46-2 300 kg.

Thanks to these standard sizes, choosing rings for arranging an individual water supply system is not difficult.

Name	Diameter D, mm	Diameter d, mm	Height h, mm	Thickness, mm	Concrete volume, cubic meters	Weight, tons
K-10-10	1160	1000	990	80	0.27	0.68
K-10-5	1160	1000	490	80	0.14	0.35
K-12-10	1410	1250	990	80	0.33	0.82
K-12-5	1410	1250	490	80	0.17	0.42
K-15-10	1680	1500	990	90	0.44	1.1
K-15-5	1680	1500	490	90	0.22	0.55
K-20-5	2200	2000	490	100	0.33	0.82
K-7-1.5	840	700	145	70	0.024	0.06
K-7-10	840	700	990	70	0.17	0.42
K-7-5	840	700	495	70	0.084	0.21
KS 7.6	840	700	590	70	0.3	0.25
KS10.18a	1160	1000	1790	80	0.46	1.15
KS10.3	1160	1000	290	80	0.08	0.2
KS10.6	1160	1000	590	80	0.16	0.4
KS10.9	1160	1000	890	80	0.24	0.6
KS10.9a	1160	1000	890	80	0.22	0.55
KS13.6	1410	1250	590	80	0.2	0.5
KS13.9a	1410	1250	890	80	0.28	0.7
KS13.9b	1410	1250	890	80	0.24	0.6
KS15.18	1680	1500	1790	90	0.804	2.01
KS15.18a	1680	1500	1790	90	0.75	1.88
KS15.18b	1680	1500	1790	90	0.72	1.8
KS15.6	1680	1500	590	90	0.265	0.66
KS15.6b	1680	1500	590	90	0.22	0.55
KS15.9	1680	1500	890	90	0.4	1
KS15.9a	1680	1500	890	90	0.35	0.88
KS15.9b	1680	1500	890	90	0.32	0.8
KS20.12a	2200	2000	1190	100	0.67	1.68
KS20.12b	2200	2000	1190	100	0.64	1.6
KS20.18b	2200	2000	1790	100	1.02	2.55
KS20.6	2200	2000	590	100	0.39	0.98
KS20.6b	2200	2000	590	100	0.3	0.75
KS20.9	2200	2000	890	100	0.59	1.48
KS20.9b	2200	2000	890	100	0.44	1.10
KS25.12a	2700	2500	1190	100	0.87	2.18
KS25.12b	2700	2500	1190	100	0.76	1.90
KS25.6	2700	2500	590	100	0.48	1.2
KS7.3	840	700	290	70	0.05	0.13
KS7.9	840	700	890	70	0.15	0.38
KTs12.9	1410	1250	290	80	0.30	0.75
KTs25.12	2700	2500	1190	100	0.97	2.42
PK-7S	870	650-670	360	100-110	0.036	0.09

What else is needed? Additional items

It should be noted that installing rings alone will not solve the problem of a high-quality water supply system. In order for the well to meet the requirements, the installation of additional elements will be required. This is not a mandatory condition, but compliance with this rule will help prevent contamination of the system with wastewater, increase its service life, and give the structure a complete look.

For this purpose:

Bottom plates provide a reliable foundation.

Floor slabs - thanks to a narrow hole on top of such a slab, a ring of small diameter is installed, closed with a regular manhole cover.

Additional rings are products of standard diameter, but smaller thickness. Such elements help raise the height of the well to the desired level.

The use of such products ensures maximum tightness of the well and prevents pipes from freezing in winter.

Well covers

Name	Diameter Dн, mm	Diameter Din, mm	Thickness H, mm	Concrete volume, cubic meters	Weight, tons
	1680	700	150	0.333	0.69
	2200	700	160	0.608	1.37
	2700	700	180	1.031	2.45
	2700	700	180	1.031	2.4
	1000	580	170	0.134	0.33
	1680	700	150	0.27	0.68
	1680	700	150	0.27	0.68
	2200	700	160	0.51	1.38
	2200	700	160	0.51	1.38
	1680	700	150	0.333	0.69
	2200	1000	160	0.608	1.2
	2200	1000	160	0.45	1.2
	2700	700	180	1.031	2.4
	2700	700	180	1.031	2.31
	1000	800	170	0.134	0.33
	1680	700	150	0.27	0.68
	1680	700	150	0.27	0.68
	2200	1000	160	0.45	1.2
	1680	1000	150	0.333	0.54
	1680	1000	150	0.21	0.53
	1680	1000	150	0.21	0.53
	2200	700	160	0.608	1.34
	2200	700	160	0.608	1.28
	2200	700	160	0.51	1.28
	2700	700	180	0.92	2.31
	2700	700	180	0.96	2.40
	1720	700	140	0.27	0.68
	2240	700	160	0.57	1.43
	2740	700	180	0.99	2.48
	1000	400	170	0.06	0.15
	1200	700	120	0.09	0.225
	1450	700	140	0.18	0.45
	1720	700	140	0.27	0.68
	1720	1000	140	0.21	0.52
	2240	700	160	0.54	1.35
	2240	1000	160	0.5	1.25
	2740	700	180	0.96	2.4
	2740	1500	180	0.74	1.85
	1000	400	170	0.06	0.15
	1000	580	170	0.08	0.19
	1160	700	150	0.159	0.25
	1410	700	150	0.234	0.44
	1160	700	150	0.1	0.25
	1160	700	150	0.1	0.25
	1410	700	150	0.18	0.45
	1410	700	150	0.18	0.45

Bottom plates

Installation process

In order for the well to meet the established requirements, the installation of the structure must be carried out in accordance with all the rules. Here you need to follow the well-known procedure:

Selecting a location

Water wells and drainage systems are not located close to residential buildings. Average distance from home - approx. 5 meters. There should be no groundwater in the chosen location, otherwise you will have to incur additional costs for sealing. In addition, special equipment must be freely accessible to the installation site.

Pit

To dig a pit, it is better to hire equipment: the depth of the hole should be equal to the height of two rings. Digging such a pit by hand will be very problematic. A drainage cushion made of layers of sand and crushed stone, thick not less than 50 cm.

Rings

For the lower tier, a ring with a solid bottom is ideal; if the product is through, the bottom slab is laid first. The elements are installed on top of each other using a truck crane, the joint is covered with mortar. If the well is mounted on moving soil, the joint can be reinforced with metal staples.

After installing the rings, communications are brought to the well, the necessary connections are made, the foundation pit is filled, the rings are covered with a top slab, and sewer hatches are installed.

Which manufacturer should you prefer?

Concrete rings for wells are produced around 250 companies located throughout Russia. Let's consider 5 trusted manufacturers.

MasterStroy LLC. The company is located in Voskresensk near Moscow, specializes in the sale of core and bulk cement, and is engaged in the manufacture of pressure pipes and reinforced concrete rings.

OJSC Industrial Construction Parts Plant. The company is known in the construction market for more than 45 years, is one of the largest manufacturers of reinforced concrete products in the Tyumen region. The company has its own construction laboratory (accredited), which controls the quality of its products.

LLC "Trading Company Vira". The production line of the enterprise is located in St. Petersburg. The company produces reinforced concrete rings and non-pressure pipes. All products undergo multi-stage quality control.

LLC "Monolit Stroy". The company is located in the Moscow region, engaged in the manufacture and sale of reinforced concrete products with 2007. The product range includes bridge and composite piles, FBS, wall rings, base slabs and manhole covers.

GazoBloki LLC. This is a Voronezh company engaged in the production of ready-mixed concrete, sand-lime and facing bricks, concrete rings and additional elements for them.

It should be clarified that these are far from the only suppliers in the Russian region. The above companies strictly monitor the quality of their products, work directly with suppliers of raw materials, and comply with GOST standards.

The main purpose of reinforced concrete wells is as elements of buried structures that are operated above or below the groundwater level in non-aggressive or slightly aggressive environments. Concrete wells are used in industrial, residential and road construction, for the organization of engineering and heating networks, sewer pipelines.

Reinforced concrete wells or well elements are standard reinforced concrete products, the production of which is carried out by the KPD 210 plant in strict accordance with GOST 8020-90. Heavy reinforced concrete is used as the material for the wells.

1. Concrete rings Table 1. Concrete rings

Name	Diameter D, mm	Diameter d, mm	Height h, mm	Thickness, mm	Concrete volume, cubic meters	Weight, tons	Concrete	Steel, kg	Series
K-10-10	1160	1000	990	80	0.27	0.68	B15	3,77	Album RK 2201-82
K-10-5	1160	1000	490	80	0.14	0.35	B15	2,06	Album RK 2201-82
K-12-10	1410	1250	990	80	0.33	0.82	B15	4,71	Album RK 2201-82
K-12-5	1410	1250	490	80	0.17	0.42	B15	2,56	Album RK 2201-82
K-15-10	1680	1500	990	90	0.44	1.1	B15	5,57	Album RK 2201-82
K-15-5	1680	1500	490	90	0.22	0.55	B15	3,03	Album RK 2201-82
K-20-5	2200	2000	490	100	0.33	0.82	B15	3,94	Album RK 2201-82
K-7-1.5	840	700	145	70	0.024	0.06	B15	0,64	Album RK 2201-82
K-7-10	840	700	990	70	0.17	0.42	B15	2,62	Album RK 2201-82
K-7-5	840	700	495	70	0.084	0.21	B15	1,53	Album RK 2201-82
KS 7.6	840	700	590	70	0.3	0.25	B15	3	-
KS10.18a	1160	1000	1790	80	0.46	1.15	B15	25	Series 3.900.1-14
KS10.3	1160	1000	290	80	0.08	0.2	B15	1.96	Series 3.900.1-14
KS10.6	1160	1000	590	80	0.16	0.4	B15	3.95	Series 3.900.1-14
KS10.9	1160	1000	890	80	0.24	0.6	B15	5.66	Series 3.900.1-14
KS10.9a	1160	1000	890	80	0.22	0.55	B15	14.76	Series 3.900.1-14
KS13.6	1410	1250	590	80	0.2	0.5	B15	4.44	Series 3.900.1-14
KS13.9a	1410	1250	890	80	0.28	0.7	B15	17.04	Series 3.900.1-14
KS13.9b	1410	1250	890	80	0.24	0.6	B15	24.42	Series 3.900.1-14
KS15.18	1680	1500	1790	90	0.804	2.01	B15	14.12	Series 3.900.1-14
KS15.18a	1680	1500	1790	90	0.75	1.88	B15	30.76	Series 3.900.1-14
KS15.18b	1680	1500	1790	90	0.72	1.8	B15	40.2	Series 3.900.1-14
KS15.6	1680	1500	590	90	0.265	0.66	B15	4.94	Series 3.900.1-14
KS15.6b	1680	1500	590	90	0.22	0.55	B15	17.54	Series 3.900.1-14
KS15.9	1680	1500	890	90	0.4	1	B15	7.02	Series 3.900.1-14
KS15.9a	1680	1500	890	90	0.35	0.88	B15	29	Series 3.900.1-14
KS15.9b	1680	1500	890	90	0.32	0.8	B15	26.6	Series 3.900.1-14
KS20.12a	2200	2000	1190	100	0.67	1.68	B15	44.36	Series 3.900.1-14
KS20.12b	2200	2000	1190	100	0.64	1.6	B15	42	Series 3.900.1-14
KS20.18b	2200	2000	1790	100	1.02	2.55	B15	55.67	Series 3.900.1-14
KS20.6	2200	2000	590	100	0.39	0.98	B15	13.04	Series 3.900.1-14
KS20.6b	2200	2000	590	100	0.3	0.75	B15	23	Series 3.900.1-14
KS20.9	2200	2000	890	100	0.59	1.48	B15	19.88	Series 3.900.1-14
KS20.9b	2200	2000	890	100	0.44	1.10	B15	34.6	Series 3.900.1-14
KS25.12a	2700	2500	1190	100	0.87	2.18	B15	49.1	Series 3.900.1-14
KS25.12b	2700	2500	1190	100	0.76	1.90	B15	44.62	Series 3.900.1-14
KS25.6	2700	2500	590	100	0.48	1.2	B15	15.74	Series 3.900.1-14
KS7.3	840	700	290	70	0.05	0.13	B15	1.64	Series 3.900.1-14
KS7.9	840	700	890	70	0.15	0.38	B15	4.8	Series 3.900.1-14
KTs12.9	1410	1250	290	80	0.30	0.75	B15	5.44	Series 3.003.1-1/87
KTs25.12	2700	2500	1190	100	0.97	2.42	B15	15.30	Series 3.003.1-1/87
PK-7S	870	650-670	360	100-110	0.036	0.09	B15	9,81	Album RK 2201-82

2. Well covers Table 2. Well covers

Name	Diameter D, mm	Diameter d, mm	Thickness H, mm	Concrete volume, cubic meters	Weight, tons	Concrete	Steel, kg	Series
1PP 15	1680	700	150	0.333	0.69	B15	-	GOST 8020-90
1PP 20	2200	700	160	0.608	1.37	B15	-	GOST 8020-90
1PP 25	2700	700	180	1.031	2.45	B15	-	GOST 8020-90
1PP 25-2	2700	700	180	1.031	2.4	B15	116.55	-
1PP 8	1000	580	170	0.134	0.33	B15	-	GOST 8020-90
1PP15-1	1680	700	150	0.27	0.68	B15	30	Series 3.900.1-14
1PP15-2	1680	700	150	0.27	0.68	B15	32.21	Series 3.900.1-14
1PP20-1	2200	700	160	0.51	1.38	B15	49.65	Series 3.900.1-14
1PP20-2	2200	700	160	0.51	1.38	B15	77.66	Series 3.900.1-14
2PP 15	1680	700	150	0.333	0.69	B15	-	GOST 8020-90
2PP 20	2200	1000	160	0.608	1.2	B15	-	GOST 8020-90
2PP 20-2	2200	1000	160	0.45	1.2	B15	84.5	Series 3.900.1-14
2PP 25	2700	700	180	1.031	2.4	B15	-	GOST 8020-90
2PP 25-2	2700	700	180	1.031	2.31	B15	112.93	-
2PP 8	1000	800	170	0.134	0.33	B15	-	GOST 8020-90
2PP15-1	1680	700	150	0.27	0.68	B15	30	Series 3.900.1-14
2PP15-2	1680	700	150	0.27	0.68	B15	32.71	Series 3.900.1-14
2PP20-1	2200	1000	160	0.45	1.2	B15	63	Series 3.900.1-14
3PP 15	1680	1000	150	0.333	0.54	B15	-	GOST 8020-90
3PP 15-1	1680	1000	150	0.21	0.53	B15	37.83	Series 3.900.1-14
3PP 15-2	1680	1000	150	0.21	0.53	B15	38.04	Series 3.900.1-14
3PP 20	2200	700	160	0.608	1.34	B15	-	GOST 8020-90
4PP 20-2	2200	700	160	0.608	1.28	B15	72.96	-
KCP1.20N	2200	700	160	0.51	1.28	B15	72.96	Series 3.003.1-1/87
KCP1.25N	2700	700	180	0.92	2.31	B15	116,55	Series 3.003.1-1/87
KCP2.25	2700	700	180	0.96	2.40	B15	112.93	Series 3.003.1-1/87
PVG-15	1720	700	140	0.27	0.68	B22.5	33,01	Album RK 2201-82
PVG-20	2240	700	160	0.57	1.43	B22.5	69,03	Album RK 2201-82
PVG-25	2740	700	180	0.99	2.48	B22.5	114,21	Album RK 2201-82
PVK-8	1000	400	170	0.06	0.15	B22.5	7,7	Album RK 2201-82
PK-10	1200	700	120	0.09	0.225	B22.5	14,85	Album RK 2201-82
PC-12	1450	700	140	0.18	0.45	B22.5	23,42	Album RK 2201-82
PK-15	1720	700	140	0.27	0.68	B22.5	31,47	Album RK 2201-82
PC-15-10	1720	1000	140	0.21	0.52	B22.5	29,44	Album RK 2201-82
PK-20	2240	700	160	0.54	1.35	B22.5	73,79	Album RK 2201-82
PK-20-10	2240	1000	160	0.5	1.25	B22.5	69,83	Album RK 2201-82
PK-25	2740	700	180	0.96	2.4	B22.5	117,51	Album RK 2201-82
PK-25-15	2740	1500	180	0.74	1.85	B22.5	108,29	Album RK 2201-82
PKB8	1000	400	170	0.06	0.15	B15	7.71	Series 3.003.1-1/87
PKM8	1000	580	170	0.08	0.19	B15	10.21	Series 3.003.1-1/87
PP 10	1160	700	150	0.159	0.25	B15	-	GOST 8020-90
PP 13	1410	700	150	0.234	0.44	B15	-	GOST 8020-90
PP10-1	1160	700	150	0.1	0.25	B15	8.37	Series 3.900.1-14
PP10-2	1160	700	150	0.1	0.25	B15	16.65	Series 3.900.1-14
PP13-1	1410	700	150	0.18	0.45	B15	22.14	Series 3.900.1-14
PP13-2	1410	700	150	0.18	0.45	B15	23.1	Series 3.900.1-14

3. Bottom plates Table 3. Bottom plates

Name	Diameter D, mm	Thickness h, mm	Concrete volume, cubic meters	Weight, tons	Concrete	Steel, kg	Series
Mon 7	840	100	0.12	0.09	B15	-	-
PN10	1500	100	0.18	0.45	B15	15.4	Series 3.900.1-14
PN15	2000	120	0.38	0.95	B15	33.13	Series 3.900.1-14
PN20	2500	120	0.59	1.48	B15	79.44	Series 3.900.1-14
PN25	3000	140	0.98	2.45	B15	143.3	Series 3.900.1-14

4. Support rings Table 4. Support rings
5. Support plates Table 5. Support plates

Name	Length L, mm	Width B, mm	Diameter d, mm	Thickness H, mm	Concrete volume, cubic meters	Weight, tons	Concrete	Steel, kg	Series
PD10	2800	2000	1000	220	0.99	2.5	B20	108.45	Series 3.900.1-14
PD6	2500	1750	580	220	0.85	2.1	B20	99.3	Series 3.900.1-14
OP-7	2300	1600	650	300	0.53	1.32	B22.5	31.07	Album RK 2201-82
PO10	1700	1700	1000	150	0.32	0.8	B20	38.18	Series 3.900.1-14

6. Cap Rings Table 6. Rings with caps
7. Sewer wells Table 7. Sewer wells

Name	Diameter D, mm	Height H, mm	Diameter d, mm	Thickness B, mm	Concrete volume, cubic meters	Weight, tons	Concrete	Steel, kg	Series
VG-12	1410	1980	1230-1270	70-90	0.82	2.05	B22.5	45.12	Album RK 2201-82
VG-15	1680	1980	1480-1520	80-100	1.13	2.82	B22.5	39.06	Album RK 2201-82
VG-20	2200	1980	1980-2020	90-110	1.65	4.12	B22.5	39.95	Album RK 2201-82
VG-25	2650	1980	2480-2520	90-110	2.23	5.58	B22.5	50.27	Album RK 2201-82
VD-8	960	1550	780-820	70-90	0.38	0.95	B22.5	12.7	Album RK 2201-82
VS-10	1160	1800	980-1020	70-90	0.54	1.35	B22.5	22.58	Album RK 2201-82
VS-10-1	1160	1800	980-1020	70-90	0.54	1.35	B22.5	16.97	Album RK 2201-82
VS-12	1410	1800	1230-1270	70-90	0.72	1.8	B22.5	25.42	Album RK 2201-82
VS-15	1680	1980	1480-1520	80-100	1.02	2.56	B22.5	33.27	Album RK 2201-82
DK 10-9	1160	2410	1020	70	1.342	1.23	M300	16.58	-
DK 15-9	1680	2870	1520	80	3	2.5	M300	-	-
DK 20-9	2200	890	2000	100	1.03	2.8	M300	-	-
DK 7-9	840	890	700	70	0.204	0.45	M300	-	-
DK-10	1160	1270	980-1020	70-90	0.49	1.23	B22.5	16.93	Album RK 2201-82
KVG 13	1410	1980	1270	70	0.58	1.46	B22.5	-	GOST 8020-90
KVG 15	1680	1980	1520	80	0.8	1.99	B22.5	-	GOST 8020-90
KVG 20	2200	1980	2000	100	1.3	3.26	B22.5	-	GOST 8020-90
KVG 25	2700	1980	2500	100	1.62	4.04	B22.5	-	GOST 8020-90
KDK-10	1160	1270	1000	80	0.345	0.86	B22.5	-	GOST 8020-90
KL-10	1160	2410	980-1020	70-90	0.84	2.1	B22.5	28.2	Album RK 2201-82
KL-12	1410	2630	1230-1270	70-90	1.2	3	B22.5	36.73	Album RK 2201-82
KL-15	1680	2870	1480-1520	80-100	1.78	4.45	B22.5	45.64	Album RK 2201-82
KL-20	2200	3110	1980-2020	90-110	3.27	8.18	B22.5	65.25	Album RK 2201-82
KLV 8	960	1550	820	70	0.3	0.76	B22.5	-	GOST 8020-90
KLK 10	1160	1800	1000	80	0.49	1.22	B22.5	-	GOST 8020-90
KLK 13	1410	1800	1250	80	0.6	1.5	B22.5	-	GOST 8020-90
KLK 15	1680	1980	1500	90	0.89	2.22	B22.5	-	GOST 8020-90
KFK 10	1160	2410	1000	80	0.65	1.63	B22.5	-	GOST 8020-90
KFK 13	1410	2630	1250	80	0.88	2.2	B22.5	-	GOST 8020-90
KFK 15	1680	2870	1500	90	1.29	3.22	B22.5	-	GOST 8020-90
KFK 20	2200	3110	2000	100	2.05	5.13	B22.5	-	GOST 8020-90
RKVG12	1380	1980	1020	55	0.82	2050	B22.5	34.1	Series 3.003.1-1/87
RKVG15	1650	1980	1250	55	1.31	2820	B22.5	45.27	Series 3.003.1-1/87
RKVG20	2150	1980	1640	185	1.65	4120	B22.5	68.62	Series 3.003.1-1/87
RKVG25	2650	1980	1790	185	2.23	5580	B22.5	112.64	Series 3.003.1-1/87
RKDK10	1160	1270	1000	80	0.49	1.23	B22.5	15.38	Series 3.003.1-1/87
RKLV8	960	1550	820	140	0.38	950	B22.5	11.33	Series 3.003.1-1/87
RKLK10	1160	1800	1000	80	0.54	1.35	B22.5	21.88	Series 3.003.1-1/87
RKLK12	1410	1800	1250	80	0.72	1.8	B22.5	26.57	Series 3.003.1-1/87
RKLK15	1680	1980	1500	90	1.02	2.56	B22.5	34.91	Series 3.003.1-1/87
RKFK10	1160	2410	1000	80	0.84	2.10	B22.5	27.3	Series 3.003.1-1/87
RKFK12	1410	2630	1250	80	1.2	3.0	B22.5	35.57	Series 3.003.1-1/87
RKFK15	1680	2870	1500	90	1.78	4.45	B22.5	44.27	Series 3.003.1-1/87
RKFC20	2200	3110	2000	100	3.27	8.18	B22.5	69.14	Series 3.003.1-1/87

8. Cast iron hatches Table 8. Cast iron hatches

Name	Diameter D, mm	Height h, mm	Volume of concrete, cubic meters	Weight, kg
Luke D	870	128	0.072	134	-
Luke L	770	90	0.038	65	15
Luke T	870	120	0.057	120	250

An online calculator will help you quickly find out how many cubes of concrete you will need and calculate the volume. Thanks to a quick calculation, you will find out the number of cubes; you just need to enter the data and thickness of the concrete slab and get the finished result. The calculator calculates cubes of concrete for floor screed.

In order for construction work to proceed efficiently and without delays, it is necessary to provide the required amount of building material. When screeding a floor, you need to know how much concrete is needed to complete this job.

How to calculate the number of cubes of concrete correctly in order to avoid unnecessary costs and the presence of low-quality material? Calculations can be done very simply using an online concrete cubic capacity calculator.

How to calculate the volume of concrete for laying a floor?

Using a concrete volume calculator, you can make the most accurate calculation of the required materials for construction in a few minutes. To do this, you need to enter geometric shapes into the prepared table the dimensions of the area of ​​the room, using the formula we find out the area m 2 and enter this value. We measure the average thickness of the screed and enter this value into the table.

C is the height of the slab Area formula

In this way, calculating the cubic capacity of concrete with a calculator is carried out in a matter of minutes, now you will find out how much concrete mixture you will need to purchase.

Features of using floor screed mortar

To ensure that the final result of calculating the volume of concrete for construction work on floor screed does not change radically, several factors must be taken into account during such work:

• area of ​​the room where renovation is planned;
• initial amount of floor; the thickness of the concrete pouring layer will depend on this indicator;
• brand of cement and quality of sand.

How to calculate the required amount of concrete manually?

If you want to compare the obtained data with the calculation of concrete cubic capacity using an online calculator, then to do this you need to take data on the area of ​​the room for floor screed and multiply by the desired layer thickness.

But in reality, not everything is so simple; a complicating circumstance in such a matter will be the determination of the required thickness of the screed, but for different types of buildings it will be different.

The peculiarities lie in the expected load on the floor, for example, in residential premises these figures are up to 5 cm, for the strength of the coating, and in non-residential premises - half as much.

Thus, if the area of ​​the room is 20 m 2, then with a thickness of 5 cm the final figures will be as follows: 20 m 2 * 0.05 m = 1 m 3, this is how much mixture is needed to screed the floor.

What is the best composition for floor screed?

Before calculating the amount of concrete for the screed, you need to decide which brand of mortar to choose. The best option would be a solution marked M 150 or M 200; such a mixture can be obtained from M400 cement, if you mix it with sand in a ratio of 1:3, or two parts.

• room 29 m2;
• screed thickness – 5 cm;
• required volume – 1m3;
• cement will be 0.24 m 3 (4 parts in total);
• sand – 0.75 m3.

Taking into account the weight of one cube of each component unit separately, we obtain the following data: if we take the average figures - 1300 kg for cement and 1625 for sand, then we get 325 and 1220 kg of each component, respectively.
When preparing materials, you need to take into account the shrinkage of the solution, which often gives a result that is 10% less than expected. You need to make an appropriate reserve so that you don’t have to make a new batch separately later.

When calculating the volume of concrete using a calculator or manually, you need to carefully double-check the data, and only then make the final purchase of building materials. And in this situation, it’s not even about money, but about the quality of the work done, how reliable and durable the floor will be.

If you use a calculator to calculate a floor screed, you must first decide what brand of screed to make, how to strengthen it, and how economically you want to approach this matter.

To save concrete, you can add a coarse fraction, such as gravel or slag, to half the floor.

If we talk about the mass of the screed, then you can make it yourself; we use the following proportion: for one part of cement we put two parts of sand and three parts of crushed stone, or screenings. You can also make the composition only from sand and cement; each master has his own methods, taking into account the characteristics of the initial state of the place for laying the floor. Quickly calculate the required amount of sand and cement.

In order to strengthen the screed, a reinforcing mesh or fiber is used, such material is attached to the base, and the fiber is mixed into the concrete to form a screed.

What tools are used to make the screed?

• for a large amount of mixing you will need a concrete mixer, and when using shovels this process will be long and labor-intensive;
• beacons to ensure an even screed;
• laser and regular level, the more accurately the top point of the floor is determined, the better and more economically the work will be done;
• You will also need trowels, shovels, construction wheelbarrows, buckets, etc.

When laying a cement mixture, the base must be dry and clean, and best of all, special penetrating compounds that will ensure good bonding function with the laying mixture.

There is an option that is more economical and faster. This method is very suitable for apartments and houses where repairs are required as soon as possible.

Conclusion
Now you know how to calculate the cubic capacity of concrete using an online calculator or do it manually using simple mathematical calculations. Wishing you quick and high-quality repairs, be careful and follow safety rules when working with cement mortar!

Well support ring– reinforced concrete “stand” for the sewer hatch. Well support rings help to lift the sewer manhole above the well cover. These are universal products that are part of many engineering structures throughout Russia and the CIS. Concrete support rings are made according to sketches PI "Mosinzhproekt" ( Album X) and GOST 8020-90. The special design of the ring provides it with a reliable elevation and “legs”, so the products are well secured to the necks and prevent clogging and penetration by strangers. The use of well support rings allows you to slightly raise the sewer hatch above the ground level. This is also necessary to protect cast iron hatches from corrosion. Reinforced concrete support rings X are used to protect the trunks of water and gas pipelines, sewers, cable channels, as well as storm drains and private drinking wells.

Well support rings used when it is necessary to raise the hatch above ground level or when it is necessary to increase the height to the level of the road surface. Well rings K 1 are not designed for high loads, so using them in a vehicle traffic area will lead to rapid destruction. In the private sector well support rings purchased to raise well covers on their plots. Using prefabricated reinforced concrete will save you from labor-intensive work with monolithic concrete and guarantee the reliability of the products. Each batch of well rings is certified according to GOST 8020-90. The operation of well rings is permissible in any climatic conditions, together with elements of round wells (Album RK 2201-82) or together with other reinforced concrete products.

Reinforcement support rings is produced by welded mesh, which allows the rings to be strong and withstand the pressure of a standing person and the passage of a passenger car. For hardening, high-quality A-III steel and BP-I wire, protected from corrosion, are used. The protective layer of concrete up to the reinforcement is at least 2 cm, this ensures reliable protection of the frames and extends the service life.

The tables in Album RK 2201-82 will help you learn more about the calculated temporary load on well rings. The company’s specialists will be able to help you choose reinforced concrete for your facility. "Complex-S".

Technologists at reinforced concrete factories select the optimal composition of heavy concrete for the production of well rings. As a rule, support rings are made of heavy grade concrete M200-M300 (B22.5) with polymer additives. Additives give concrete water resistance W6-W8 and frost resistance F100-F200. Such well rings can be used in extreme conditions of humidity and negative temperatures. K 1 products are resistant to chemical reagents typical for the city, and upon your order you can buy well rings resistant to aggressive environments. Prefabricated elements of reinforced concrete wells undergo laboratory and field tests, tests of strength, rigidity and crack resistance, based on the results of which they receive a certificate of conformity GOST 8020-90. The Kompleks-S company offers only original well rings, which are supplied together with technical data sheets. The weight of the support ring is 130 kg, allowing it to be mounted without the help of special equipment.

You can buy reinforced concrete products for the construction of underground wells: working chambers, covering slabs, well covers, well bottoms and rings from the Kompleks-S company. Our catalog presents concrete products at the best prices.

Product marking

Album RK 2201-82 fixed one standard size of the support ring of wells K1, but in series 3.003.1-1/87 And 3.900.1-14 you will also find well rings for similar purposes. You will find a clearly visible brand of the product on the end face. If you want to buy well rings, especially protected from corrosion, the letter P should be present in the mark - reduced permeability of concrete.

Product quality control

Similar to other reinforced concrete products well rings do not have the right to cracks and exposed reinforcement. Only networks of shrinkage cracks with a width of no more than 0.1 mm are acceptable. The rest are the cause of future destruction and grounds for rejection. Also, rusty and grease stains, as well as sagging, deep cavities and chips of more than 50 mm are not allowed on the surface of reinforced concrete products. Deviations in the geometry of the support rings K 1 are undesirable. No more than 3 mm in diameter and 5 mm in height are allowed. In order to assess the actual condition of the concrete, it is necessary to carefully inspect all products in the batch during the acceptance procedure. The Kompleks-S company will help you buy high-quality well rings; we always have the most optimistic prices, a quality guarantee and realistic deadlines.

On acceptance tests support rings, concrete performance is assessed in terms of compressive strength and tempering strength of concrete, as well as the compliance of reinforcement and embedded products, the strength of welded joints, the thickness of the protective concrete layer to the reinforcement, the accuracy of geometric parameters and the quality of the concrete surface.

A batch of well rings is accompanied by a technical passport - a document from the manufacturer, which indicates compliance GOST 8020-90 and drawings Album RK 2201-82, as well as information about the production date of the rings, the number of products in the batch, the results of strength tests, information about the brand of concrete and its water resistance and frost resistance.

Transportation and storage

A special storage scheme for well rings does not apply to support rings; they are stored in stacks of no more than six pieces. Transportation of products requires fixation and the use of pads and gaskets. Gentle unloading and installation of the support ring possible with steel hinges included in the product design.