Cement and Concrete Chemistry

TL;DR: In this paper , the influence of activation by sieving through a 63 µm sieve and a 125 µm Sieve on fresh and hardened cement mortar properties was investigated, and it was shown that activated biomass fly ash promoted the growth of the C-S-H phase and ettringite.

TL;DR: In this article, a comparison of pozzolanic activity of R-Mud, which is a byproduct of TiO2, with known and long-used additives to cement and concrete is presented.

TL;DR: This study investigates the shear behavior and cost-effectiveness of FRP bars reinforced seawater sea-sand engineered cementitious composites (SS-ECC) beams with varying salinity levels, demonstrating high shear capacity and ductility with satisfactory cost-effectiveness.

TL;DR: Overall analysis suggests that steel slag can be used for adsorption of coke-oven wastewater pollutant at lower temperatures, and steelmaking slag is found to be an efficient, readily available and economical adsorbent for removal of toxins from the coKoven wastewater atLower temperatures.

TL;DR: Fur die Praxis der Portland-Zement-Herstellung hat sich ergeben, das das gunstigste Verhaltnis von as mentioned in this paper, das bei uns (im Gegensatz zu England) die Berechnung des Moduls nur durch Division der Prozentzahlen, also ohne Berucksichtigung der Molekulargewichte, ublich ist.

TL;DR: In this paper, the authors present test results on the effect of different types of cements, age, humidity, and humidity on the strength of the Cascaded Carmel Loride attack.

TL;DR: In this article, the causes of several types of efflorescence on concrete and the steps that can be taken for prevention or removal are explained in simple terms and all the sections are also applicable to other materials incorporating portland cement, eg renderings, mortar, reconstituted stone and cement-based paint.