COMPOUND FOR FILLING OF CONSTRUCTION JOINTS Russian patent published in 2015 - IPC C04B28/26 C04B111/20 C04B111/23 

FIELD: construction.

SUBSTANCE: compound for filling of construction joints comprising sand, sodium silicate and sodium hexafluorsilicate, contains sand of dust-like fraction, sodium silicate with the diameter of at least 80% particles not exceeding 96 mcm, sodium hexafluorsilicate with the diameter of at least 80% particles not exceeding 40 mcm and in addition Portland cement with the diameter of at least 80% particles not exceeding 24 mcm and is obtained by joint grind of sodium silicate, sodium hexafluorsilicate and Portland cement, by screening the ground mix until the rest on a sieve 0.08 not exceeding 8-9%, and mixing with the named sand at the following content of components, wt %: sand 54-55, Portland cement 19-21, sodium 19-21 silicate, hexafluorsilicate sodium 4.5-5.5.

EFFECT: performance improvement.

2 cl