The effect of TIPA and CaCl2 on early hydration, i.e. 24 h, a B-BYF cement has been studied by in situ synchrotron X-ray powder diffraction, calorimetry, thermal analysis, NMR, rheological measurements the pastes mechanical strength corresponding mortars. addition 0.05 %bwc (by weight cement) reduced viscosity paste during first minutes hydration but, after end induction period, ∼7 it favored f...

The addition of sand to cement paste was found to degrade the vibration damping ability, as shown by decreases in both loss tangent and storage modulus under flexure. However, further addition of silica fume more than restored the vibration damping ability, due to the silica fume causing increases in both loss tangent and storage modulus. Silica fume increased the loss modulus of mortar by as m...

A novel binder system for cement-based composites depending upon the strength and durability characteristics is introduced in this study. The possibility of calcined red mud cement pastes with without colloidal nano-silica (CNS) over Ordinary Portland Cement paste (OPC) at three W/B ratios (0.3, 0.4, 0.5) evaluated. optimum percentage replacement by (15%) was selected from compressive values di...

After thermal braising and magnetic separation, steel slag is often ground into powder (SSP), which contains active silica (SiO2) can be used as a cementitious material to replace part of the cement applied in concrete. However, there have been relatively few studies on influence SSP performance pavement concrete (PCC). In this paper, was an admixture paste, mortar, PCC, investigate effect flui...

In this paper, supercritical carbonation tests of concrete specimens with different water-to-cement ratios are carried out. the test, thickness interfacial transition zone (ITZ) is determined by distribution Ca/Si ratio across interface between coarse aggregate and cement paste. The microhardness distribution, microstructure porosity ITZ before after analyzed. A geometrical physical model consi...

Recycling solid waste in cement-based materials cannot only ease its load on the natural environment but also reduce carbon emissions of building materials. This study aims to investigate effect recycled glass powder (RGP) early-age mechanical properties and autogenous shrinkage cement pastes, where is replaced by 10%, 20% 30% RGP. In addition, microstructure nano-mechanical paste with differen...