RU1789516C - Mortar solution - Google Patents

Description

A mortar of a specific composition is obtained by dosing and mixing an appropriate amount of components. Molded samples are determined for strength at the age of 28 days. Examples of compositions and test results are presented in table. 3. Indicators of mobility (7-8 cm), segregation and water retention capacity are close values for all three examples.

As follows from the test results, the decrease in water demand of the solution according to the invention is 3.9-5.2%, and the increase in strength at the age of 27 days is 25-32%.

Formula i Zo Breteni

A mortar comprising Portland cement, carbonate sludge and water, characterized in that, in order to reduce water demand and increase strength, the solution contains carbonate sludge sawdust from bryozoic or nummulite limestones and additionally carbonate sand fractions up to 5 mm from those same known forks in the following ratio of components, wt.%:

Portland cement 8-9;

specified slurry (dry

substance) 6-8;

the specified carbonate sand 64-65;

water rest.

Table 1

fifteen

Continuation of table 1

Table 2

Table3