... blended with NS, the PS@NS improved cement hydration due to the agglomeration affect. calcium carbonate calcium silicate hydrate (CSH) compressive strength light weight pozzolans UN SDG 7: Affordable and clean energy UN SDG 9: Industry, innovation and infrastructure UN SDG 12: Responsible...

... the concrete matrix, which reduce the bonds within the concrete constituents causing micro cracks. Hence to mitigate this problem, enzyme induced calcium carbonate precipitation (EICCP) process was used to treat the micro cracks, and enhance the mechanical and durability properties of RHA blended concrete...

... γ-C₂S by 19.0% when compared with carbonated samples without bacteria. The main products of carbonated γ-C₂S were vaterite, calcite and silicon dioxide gel. The addition of bacteria could only accelerate the deposition of calcium carbonate, while hardly changing...

... 2010 ICE Publishing: All rights reserved 2020 blended cements calcium carbonate microstructure Replacement of cement by supplementary cementitious materials (SCMs) such as slag, fly ash and silica fume in a concrete mixture can reduce carbon dioxide emissions and the hydration...

.... Higher or similar compressive strength was observed for all the LCCP blends as compared to ordinary Portland cement. The pozzolanic reaction of calcined clay and formation of carboaluminates on the reaction of calcium carbonate with alumina helps to develop a refined pore structure that aids in reducing...

... by the authors (Neves Junior et al., 2013a , 2013b). As expected, the pattern for P_C24h showed only characteristic peaks of calcium carbonate, indicating its high degree of carbonation. Figure 3. XRD spectra of P_REF, P_C1h and P_C24h pastes...

..., as vast amounts of calcium ions are present in this material, carbon dioxide from the air will react with these cations when dissolved in water, which will lead to the formation of calcium carbonate crystals to close up cracks. The use of microfibres is beneficial in terms of shrinkage. As the tensile...

... Calculated from particle size distribution Superplasticiser 1·065 NA NA Water 1·0 NA NA 13 07 2016 15 11 2016 16 11 2016 ICE Publishing: All rights reserved 2016 calcium carbonate fly ash (PFA) microsilica/silica fume Concrete is the most used man-made...

... Publishing: All rights reserved 2016 calcium carbonate reinforcement special cements Wind erosion plates of internal diameter 20·0 cm and height of 2 cm were used. A layer of approximately 0·2 cm of gauze was first placed at bottom of the wind erosion plate, followed by 20 mm of fugitive dust...