Low-grade metamorphic rock (LMR) is a kind of stone that widely distributed in China. The alkali activity strictly prevents its application conventional concrete. This paper evaluates the possibility using LMR aggregate cement-stabilized pavement base (CSPB). compressive strength CSPB prepared with and limestone aggregates at various curing conditions was measured. Expansion rates were determin...

Subject of research: the article considers foamconcrete on quartz cement binder, mass introduction raw materials in construction can be considered practically achievable and economically profitable.
 Purpose technology foam concrete quartz-cement binder is proposed by introducing an ultrafine filler (nanomodifier) from activated waste into reduces consumption 10 % improves its physical mec...

In this work, we present the development and characterisation of new cement-based composite panels reinforced with fibres recovered from wastes protective technical clothing. The developed a flexural strength (?15 MPa) fracture toughness (?3.5 kJ/m 2 ) that are suitable for their application on ventilated façades. environmental impact these was evaluated through life-cycle assessment (LCA) crad...

Sand plays a crucial role as an important component of concrete. Concrete is widely used construction material. By examining the sand in enhancing workability, strength, and durability, we gain insight into its importance shaping structural integrity available different Mohal Barak Valley like Taranathpur river Dwarbond, Katakhal , Jatinga river, are found to be fail zoning after Particle size ...

in this work, the waste stone sludge obtained from the granite and marble stone processing factories was used for the manufacture of artificial stones using vibratory compaction in a vacuum environment. the results obtained showed that water absorption and density increased, and the flexure, compressive, and tensile strengths decreased with increase in the content of the waste stone sludge. the...

The influences of nano-ZrO2 (NZ), nano-TiO2 (NT), nano-Fe2O3 (NF) and nano-Al2O3 (NA) additions on properties of the fresh and hardened cement paste in comparison with the fine cement paste were experimentally studied. Mini slump and flow cone tests were conducted on fresh cement pastes. Moreover the compressive and tensile strength of hardened cement paste were measured. SEM micrographs and XR...

Biocompatibility of ceramic materials in Ca2P2O7-Ca(PO3)2 system was investigated using different methods, including vitro and vivo tests. Ceramic the were obtained by annealing cement-salt stone based on powder mixtures calcium citrate tet-rahydrate Ca3(C6H5O7)2·4H2O monocalcium phosphate monohydrate (MCPM) Ca(H2PO4)2·H2O. The phase composition included brushite, monetite as a result chemical ...

AIM The present study was to evaluate the space provided for the temporary luting cement, after the application of various coats of die spacers, during the fabrication of provisional crowns and bridges. MATERIALS AND METHODS A total of 50 specimens of dental stone with provisional crowns on all these samples were prepared and were divided into five groups based on the application of various c...