SU647280A1 - Concrete mortar - Google Patents

Description

(54) CONCRETE MIXTURE

.36472804

alkaline plasticizer. By windowing and storage in lormal 1 1p.1x utopian tea after stirring, the mixture is tested by a standard method and ported to a molding station and packing.

into shapes, compacted with vibration and Compositions of concrete mixtures brought

after pre-exposure, subject to sub-5 in Table 1, their physics are mechanical svoygayut heat treated. Nkgurnye products and concrete samples after plastering and structural characteristics - in table.2.

Table 1

Coarse aggregate 52.5 52.8987 53.121 Water 7.7 7.5 Sulfanol 0, O013 Adipic alkaline plasticizer. 0, O19 Kator 3.5264 53.9482 46.8 47.8362 7.1 6.6 9.4 8.1 O. OOB O, OO18 - 0.0058 0.013 - 0, O58

As can be seen from the results given in Table 2, the introduction of an additive complex consisting of an adipic alkaline plasticizer in the amount of 0, O13-0.13 weight (% (0.11, 0% by weight of cement) and sul1zfanol in the amount of 0, OO06-O, O6 weight. % (O, OO5-O, 05% by weight of cement) allows to significantly improve the physicomechanical properties of concrete, which predetermined the yield of its long-lasting compression. Compared with the additive-free concrete of the same composition, the frost resistance of concrete with the proposed complex additive increases to more than 500 cycles (instead of 50-75 cycles), water resistance is 8–16–16 dB (instead of 13 MPa), total porosity is reduced to 22–25% ( instead of 32-39%), i.e. on 30%, the volume of the filtering capillaries rngh. then decreases 2 times. Ф о рм ул and. and 3 about b y te

Concrete mixture comprising stranded, fine aggregate, sulfanol, which is characterized in that, in order to increase its resistance to water, water resistance and structural density, it additionally contains an adipic alkaline plasticizer and coarse aggregate, with the following ratio of components, weight. %:

12-24

20-27 0, O006-O, 006

0,013-0,13

46-55 Else.

Sources of information taken into account in the examination

1. USSR author's certificate No. 252899, -kl. C. O4 B 7/14, 1967.

2. USSR author's certificate

N 321498, cl. C 04 B 15 / O2, 197O.