Method to prepare concrete mix on porous filler. RU patent 2452714.

FIELD: construction.

SUBSTANCE: in the method to prepare a light concrete mixture on a porous filler, including mixing of portland cement with an additive, a porous filler and tempering water, first a superplasticiser additive in the amount of 0.4-0.5% of portland cement mass is added into 50-60% of the total amount of tempering water and mixed with portland cement during 50-60 s, then the whole porous filler is added, such as highly light porous filler with medium density of not more than 250 kg/m³, and again mixed for 70-80 s, afterwards the remaining part of tempering water is added, and the mixture is finally mixed for 30-40 s.

EFFECT: higher uniformity of cement dough distribution along highly light filler surface and its tighter packing in concrete, increased strength of concrete and reduction of its heat conductivity.

1 ex, 1 tbl

IPC classes for russian patent Method to prepare concrete mix on porous filler. RU patent 2452714. (RU 2452714):

C04B40 - Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability (by selecting active ingredients C04B0022000000-C04B0024000000; hardening of a well-defined composition C04B0026000000-C04B0028000000; making porous, cellular or lightening C04B0038000000)

C04B38/08 - by adding porous substances

C04B111/20 - LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS (devitrified glass-ceramics C03C0010000000); REFRACTORIES (alloys based on refractory metals C22C); TREATMENT OF NATURAL STONE

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