Concrete mix

FIELD: construction.

SUBSTANCE: concrete mix includes, wt %: portland cement 20.0-24.0; fine filler 58.78-61.24; polyvinyl chips 0.6-1.2; synthetic fibre with length of 5-25 mm 0.06-0.12; water 16.5-17.5.

EFFECT: increased strength of concrete.

1 tbl

 

The invention relates to the construction materials industry, in particular to the manufacture of concrete building blocks.

Famous concrete mixture comprising, by weight.h.: Portland 1,0; fine aggregate (zoloshlakovye) 3,6-9,7; shredded plastic (polyethylene) 0,024-0,009; water 0,6-1,1 [1].

The objective of the invention is to increase the strength of concrete.

The technical result is achieved by the fact that the concrete mix including Portland cement, fine aggregate, crushed plastic, water, as shredded plastic contains PVC shavings and additionally synthetic fiber with a length of 5-25 mm in the following ratio, wt.%: Portland 20,0-24,0; fine aggregate 58,78-61,24; PVC shavings 0,6-1,2; synthetic fiber with a length of 5-25 mm 0,06-0,12; water 16,5-17,5.

The composition of concrete mixtures are given in the table.

Table
ComponentsContent, wt.%:
composition No. 1composition No. 2composition No. 3
Portland cement (500 M)24,022,0 20,0
Fine aggregate:
- sand quartz-60,1261,24
- ash58,78--
PVC chips
0,60,81,2
Synthetic fiber with a length of 5-25 mm
- Mylar0,12--
- nylon-0,08-
- PVC--0,06
Water16,5of 17.0 of 17.5
Concrete strength
bending at the age of 28
day, MPa
not less than 3not less than 3not less than 3

PVC shavings of white or light gray color represents the waste generated during the cutting of the blanks used in the manufacture of plastic Windows. The size of the chip: the length of 5-50 mm, width 1-3 mm, thickness of 0.1-0.2 mm

For the preparation of concrete mixes prepare and dispense commodities. Portland cement, fine aggregate, PVC material, synthetic fiber length of 5-25 mm mix. To the mixture of dry ingredients add water and mix all. The resulting concrete mixture is placed in a metal (pre-lubricated with machine oil) forms and allowed to cure. Then the product is extracted from forms and transported to the finished goods warehouse.

The source of information

1. RU # 2083523, 1997.

Concrete mix including Portland cement, fine aggregate, crushed plastic, water, characterized in that as shredded plastic contains PVC shavings and additionally synthetic fiber with a length of 5-25 mm in the following ratio, wt.%: Portland 20,0-24,0; fine aggregate 58,78-61,24; polyvinyl who Lorena chips 0,6-1,2; synthetic fiber with a length of 5-25 mm 0,06-0,12; water 16,5-17,5.



 

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EFFECT: high strength.

1 tbl

Concrete mixture // 2537731

FIELD: chemistry.

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1 tbl

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EFFECT: increased strength of concrete.

1 tbl

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FIELD: chemistry.

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FIELD: construction.

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2 cl, 4 ex

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