SU808436A1 - Concrete mix - Google Patents

Description

(54) CONCRETE MIXTURE

The invention relates to building materials, in particular, to concrete mixtures with air-entraining additives. A known concrete mixture, including mineral in a stranger, fine and coarse aggregate, water and purified sulphate soap in an amount of 0.005-0.25% by weight of the mineral stranger 1. Closest to the proposed technical essence and the achieved result is a concrete mixture, including cement, aggregate, water and resin, neutralized air entraining in the amount of 0.005-0.015% by weight of cement 2. However, the known concrete mixture has an insufficiently stable porous structure. resin in the following ratio, wt.%: Cement8-20 Filler 64-85 Air-entraining agent 0.002-0.06 WaterOther Remaining Thermally dehydrated and flax wood resin is one of the chemical-chemical industries. Examples of the composition of the concrete mixture are given in Table 1. Table 1 Durability, kg / cm Volume of entrained air,% l Durability, kg / cm Volume of entrained air 16.2% 2 Durability kg / cm Volume of entrained air 13.5% Thermal conductivity kcal .ijllk m.h. Known Strength, kg / cm Volume of air involved 12.8%

Heat conductivity coefficient kcal m h grad0,24

Table 2 108 3.9 51 57 62

21

0.3 0.27 0.057 116 116 110 4.7 4.3 3.73.6 5558 5.815 6367 2.8 11.3 12 1.5 16.7 - 0.26 0.25 0.018 73 10.9 17 , 0 67 73 11.5 3.5 32 0.5 7.9

Claims (1)

Claim A concrete mixture comprising cement, aggregate, water and an air-entraining additive, characterized in that, in order to obtain a stable porous structure, it contains dehydrated, heat-treated and saponified wood resin as an air-entraining agent in the following ratio of components, wt.%; Cement 8-20 Filler 64-85 Щ Air entraining additive 0.002-0.06 Water Else: