Most of the public roads that are being built and reconstructed in Uzbekistan today involve using a cement-treated or reinforced crushed stone-gravel-sand mixture for upper base layer.In process quality control construction work, several difficulties arise with assessing this material's strength.The article deals issue determining model predicting tensile strength during bending treated cement ...

This research paper discusses the influence of zeolite-containing filler Beltau deposit and polycarboxylate superplasticizer on formation porosity cement stone. The results experiments to establish effect plasticizing additive pore size distribution are graphically presented. data obtained confirm feasibility using this type in concrete.

Aiming at the problem of cement ring sealing failure during deep high temperature shale gas exploitation, comprehensively considering influence characteristics multi-cluster fracturing multiple horizontal wells and formation temperature, cementing southwest region is taken as research object. After exposure to different temperatures (95?C 135?C) for times (5, 10, 20 times), axial triaxial tests...