METHOD FOR CEMENTATION OF WEAK SOILS Russian patent published in 2009 - IPC E02D3/12 C09K17/10 

FIELD: construction.

SUBSTANCE: invention is related to the field of construction, in particular to methods for cementation of weak soils in preparation and reconstruction of buildings and structures foundations. In method of weak soils cementation, including preparation of water suspension of cement with finely dispersed mineral component and introduction of prepared suspension into soil, as finely dispersed mineral component they use carbonate sludge of chemical water treatment for boiler houses of heat power plants - HPP or heat power stations HPS, which is introduced in composition of solid phase of water suspension of cement prior to preparation of specified suspension in amount of 10-35 wt % of solid phase mass, identifying maximum value of its amount according to the following formula: where W/C - water cement ratio of cement water suspension without addition of carbonate sludge that makes 0.44-0.86.

EFFECT: improved physical-mechanical characteristics of cement-containing solution intended for introduction into strengthened soil, expansion of raw material base of cementation mortars making and reduction of material and labour expenses in process of soil strengthening.

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