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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1 tbl

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41 cl, 12 tbl, 3 dwg

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18 cl, 4 tbl, 7 ex, 3 dwg

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11 cl, 14 dwg, 1 tbl

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SUBSTANCE: claimed material contains high-early-strength cement as a binder, colloidal graphite as an electrically conducting component, and antiplastic substances (e.g. chamotte, diabase, quartz sand or mixture thereof) as temperature-stabilized filler.

EFFECT: material useful as electric heating element operating at high temperature without losses of physical characteristics.

18 ck, 8 dwg, 4 tbl, 1 ex

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SUBSTANCE: fibrous concrete composition contains cement binder, filler, reinforcing fibrous component and water. Said reinforcing fibrous component is beforehand treated in low-temperature glow discharge plasma of alternate current under the pressure of 50-250 Pa, current of 1.0-2.2 mA/cm2 for 20-60 sec.

EFFECT: increased bending strength, compressive resistance, and shock strength.

1 tbl

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9 cl, 2 tbl

FIELD: manufacture of building materials.

SUBSTANCE: quick-hardening bound cement mortar including, vol parts: cement 6-9, water 2-3, aqueous epoxide resin dispersion 1, and hardener 1, said cement being of quick-hardening type and said dispersion additionally containing polyurethane rubber. Quick-hardening cement can be alumina-based cement. In a method of preparing quick-hardening bound cement mortar including mixing cement with aqueous epoxide resin dispersion and hardener on a surface immediately before underwater application, one volume part of water is diluted with one volume part of hardener and stirred, after which one volume part of aqueous dispersion of epoxide resin and polyurethane rubber are added, resulting mixture is agitated and then, depending on particular application, 1 or 2 vol volumes of water are added and, after agitation, resulting composition is used to temper quick-hardening cement, and stirred in low-speed mixer until soft plasticine-type plastic homogenous mass is obtained, after which mortar is held up to 5 min and agitated once more. Escort method of repairing concrete and reinforced concrete underwater structures comprises conveying quick-hardening cement mortar into underwater repair operation zone and manually laying thus prepared mortar onto prepared surface with defective spots. Conveyance of mortar can be accomplished by means of containers or buckets, or yet by means of worm mortar pumps. Invention enables preparation of repair material characterized by dimensional stability, short setting time and fast hardness development, non-diffuseness in aqueous media, waterproofness, frost resistance, crack resistance, resistance to corrosive media (salt and alkali solutions, petroleum products), high adhesion to cement, concrete, and metallic surfaces, and not leading to corrosion of hardware.

EFFECT: improved performance characteristics of cement mortar.

6 cl

Paving member // 2250882

FIELD: high-way engineering; building of side-walks and squares.

SUBSTANCE: proposed paving member contains cement, sand, industrial wastes, plasticizing agent and water. Used as plasticizing agent is sodium alkyl sulfonate; comminuted rubber is used as industrial wastes (rubber and/or tire industry) at sizes of fractions of 0.06 to 3.00 mm; paving member contains additionally open-cut clay at the following composition, mass-%: comminuted rubber, 4-10; sand, 50-65; clay, 10-20; cement, 15-24; plasticizing agent, 0.1-0.3; water being the remainder.

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

1 tbl, 5 ex

FIELD: road-building materials.

SUBSTANCE: invention relates to building of highways and can be used both for building and restoration of main traffic arteries. Material containing cement, 18-25%, sand, 60-70%, and water further contains 4-10% of rubber crumb: waste from mechanical rubber and/or tire industry having fraction within a range 0.06 to 3.00 mm.

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

1 tbl, 5 ex

FIELD: setting liquid cementing compositions remaining liquid within period of time required for use in flexible container for forming shaft lining.

SUBSTANCE: proposed composition contains (i) Portland cement in the amount of at least 8%, preferably 10%; (ii) water soluble silicate in the amount of about 2%; (iii) water in the amount adequate for obtaining mass ratio of water to solids about 1.2:1; per cents are given for combined mass (i), (ii) and (iii). After mixing the components, viscosity is rather low for introduction of make-up water. Composition may contain (iv) pozzoulana in the amount of from 2 to 35 mass-% considered for combined mass (i), (ii), (iii) and (iv). Proposed composition is self-aligning cementing composition at accelerated picking-up of strength which may be transferred for at least 24 h after storage under static conditions.

EFFECT: low cost of composition; enhanced stability to sedimentation.

11 cl, 5 tbl, 5 ex

FIELD: building industry, in particular building materials based on mixed lime/cement binders useful in preparation of building mortars.

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