Slag-containing pastes and concretes were analysed by element-specific synchrotron-based techniques to determine the speciation of iron on crushed materials through spatially resolved micro-spectroscopic studies. The investigated cement samples hydrated either in laboratory, or exposed river sea water. Metallic iron, along with minor proportions sulphide magnetite was detected laboratory sample...

Foamed mortar with a density of 1300 kg/m³ was prepared. In the initial laboratory trials, water-to-cement (w/c) ratios ranging from 0.54 to 0.64 were tested to determine the optimal value for foamed mortar corresponding to the highest compressive strength without compromising its fresh state properties. With the obtained optimal w/c ratio of 0.56, two types of foamed mortar were prepared, name...

The results of using the developed methodology for predicting distribution coefficients charge elements between products blast-furnace smelting based on calculation integral parameters and temperature-blowing regime modern operating conditions one blast furnaces in Ukraine are presented. proposed approach differs from traditional methods considering as constant values provides a predictive chem...

This work proposed to incorporate the sugarcane bagasse ash (SBA) with a high content of organic matter (loss on ignition 35.87%) in alkali-activated mixtures blast furnace slag. After grinding SBA, replacement ratios 10%, 20%, and 30% ground were used for flowability evaluation. The containing 20% showed dry consistency, then only mixture 10% slag was other tests. use an air-entraining admixtu...

This work aims to show the advantages of using GGBS (Ground Granulated Blast Furnace Slag) and ACBFS aggregate (Air-Cooled on tensile strength durability properties infrastructure concrete at reference age 28 days. Three mixes were prepared: first one was a control sample; second had 15% (instead Portland cement) 25% natural sand); third 50% sand). The studies mortars focused ratio compressive ...

Microstructural and mechanical properties of alkali activated binders based on blends of Colombian granulated blast furnace slag (GBFS) and fly ash (FA) were investigated. The synthesis of alkali activated binders was conducted at 85 °C for 24 h with different slag/fly ash ratios (100:0, 80:20, 60:40, 40:60, 20:80, and 0:100). Mineralogical and microstructural characterization was carried out b...