Raw material mixture for concrete production

FIELD: chemistry.

SUBSTANCE: raw material mixture for concrete production, which contains cement, a fine filler, a plasticising additive and water, additionally contains milled and sieved through net No. 10 mobile phone waste with preliminarily extracted accumulators with the following component ratio, wt %: cement 24-36; fine filler 12.7-17.9; plasticising additive 0.1-1.5; water 18-36; milled and sieved through net No. 10 mobile phone waste with preliminarily extracted accumulators 10-40.

EFFECT: safe utilisation of mobile phones.

1 tbl

 

The invention relates to the construction materials industry, in particular the production of concretes used in low-rise construction.

Famous raw mix for the production of concrete containing, wt.%: cement 35,0-39,0; fine aggregate 35,0-39,0; resin air entraining extraction-rosin 0,11-0,17; carboxymethylcellulose 0,05-0,07; plasticizing additive (superplasticizer C-3) 0,4-1,4; water - other [1].

The task of the invention consists in the safe disposal of spent mobile phones.

Technical result is achieved by the fact that the raw mix for the production of concrete containing cement, fine aggregate, and plasticizing additive, water, additionally contains crushed and sieved through sieve No. 10 of spent mobile phones with pre-extracted batteries in the following ratio, wt.%: cement 24-36; fine aggregate 12,7-17,9; plasticizing additive 0.1 to 1.5; water 18-36; crushed and sieved through sieve No. 10 of spent mobile phones with pre-extracted batteries 10-40.

The composition of the raw mix for the production of concrete is given in the table.

Cement mixed with fine (passing through mesh No. 5) filler, crushed and sieved through sieve No. 10 of spent mobile phones (batteries what s phones should be extracted), add water and plasticizing additive. The mixture is filled metal forms, maintain it in the form 12-24 h at 20-25°C, then the product (building blocks) is extracted from forms.

The compressive strength of concrete (aged 28 days), obtained from a raw mixture will be 10-15 MPa.

Sources of information

1. RU # 2237041, 2004.

Raw mix for the production of concrete containing cement, fine aggregate, and plasticizing additive, water, characterized in that it further comprises crushed and sieved through sieve No. 10 of spent mobile phones with pre-extracted batteries in the following ratio, wt.%: cement 24-36; fine aggregate 12,7-17,9; plasticizing additive 0.1 to 1.5; water 18-36; crushed and sieved through sieve No. 10 of spent mobile phones with pre-extracted batteries 10-40.



 

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11 cl, 14 dwg, 1 tbl

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18 ck, 8 dwg, 4 tbl, 1 ex

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1 tbl

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9 cl, 2 tbl

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6 cl

Paving member // 2250882

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EFFECT: enhanced frost resistance atmosphere resistance and anti-glaze parameters.

1 tbl, 5 ex

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EFFECT: improved strength and shockproof characteristics, atmosphere and frost resistance, and resistance to corrosive media.

1 tbl, 5 ex

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11 cl, 5 tbl, 5 ex

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SUBSTANCE: claimed mixture contains cement binder (Portland cement); mineral plasticizer (hydrated lime); filler; organic additive; antifreeze additive; wherein as filler limestone sand containing 90-95 mass % of CaCO3 and having particle size of 0.001-4.0 mm is used. Said limestone sand represents waste from calcium oxide production and according to grade size is taken in the next ratio (mass %): grade of 0.001-0.09 mm 1.4-9.9; grade of 0.09-0.80 mm 47.1-59.9; grade of 0.8-1.2 mm 11.3-21.4; grade of 1.2-2.00 mm 0.1-15.7; grade of 2.00-4.00 mm 0.1-20.8. As organic additive alkoxysilane, which represents redispersible hydrophobic agent. Additionally claimed mixture contains solid waste from soda ash production and active mineral filler. More particularly dry mixture contains (mass %): Portland cement 18.0-26.5; hydrated lime 0.001-8.000; limestone sand 68.300-73.797; active mineral filler 0.001-2.000; antifreeze additive 1.0-2.7; redispersible hydrophobic agent 0.05-0.50; waste from soda ash production 0.01-0.50. Alkoxysilane is a polymerization product of silane and polyvinyl alcohol and has bulk weight of 220-320 g/dm3. As active mineral filler active silica named as "carbon white" may be used, and as antifreeze additive sodium nitrite, or potash, or sodium formate, or mixture of calcium nitrate with urea in mass ratio of 2:1. Abovementioned solid waste from soda ash production has the next essentially constant composition (mass %): CaCO3 51-69; CaSO4 2-8; CaCl2+NaCl 2-7; Ca(OH)2 7-16; SiCO2 10-18. Dry mixture of present invention may be used at law temperature, namely from +3 to -25°C.

EFFECT: dry building mixture of increased frost resistance, high adhesiveness to substrate and high water-retaining ability.

5 cl, 1 tbl

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