Metakaolinite-based geopolymer has been synthesized at about 25 °C from metakaolin which has been calcined in different temperatures (600-900 °C) and different Na2O/SiO2 ratio activator (0.3-1.1). Compressive strength and microstructure of cement pastes after 7-28 days curing at ambient temperature were measured. Compressive strength tests on the samples showed that the sample made with calcine...

Metakaolin is reactive and widely used in the modern concrete industry. This study presents an integrated strength–sustainability evaluation framework, which we employed context of metakaolin content concrete. First, a composite hydration model was to calculate reactivity cement. Furthermore, hydration-based linear equation designed evaluate compressive strength development The coefficients are...

This study aims to evaluate the effect of nanosilica (NS) and metakaolin (MK) as binder replacement materials on fresh hardened characteristics slag (GGBS)-based alkali-activated self-compacting concretes (A-ASCC). Therefore, nine A-ASCC mixes, with without metakaolin, were prepared, well mixes NS incorporation. In production GGBS was used a material. The properties determined using L-box, V-fu...

Limestone-calcined clay-cement (LC3), as one of the most promising sustainable cements, has been under development over past decade. However, many uncertainties remain regarding its rheological behaviors, such metakaolin content calcined clay. This study aims to investigate effect increasing fine-grained in clay on rheology LC3 pastes. Rheological behaviors and early-age hydration studied mixtu...

Cement-based materials are widely used in transportation, construction, national defense, and other fields, due to their excellent properties. High performance, low energy consumption, environmental protection essential directions for the sustainable development of cement-based materials. To alleviate pressure caused by carbon emissions cement production, this paper studies containing metakaoli...

Abstract Several geopolymer-based materials were produced and characterized by mixing metakaolin, a commercial sodium silicate solution, hydroxide loose waste olivine sand deriving from metallurgical process devoted to the production of high manganese steel. Olivine was added either in as-received form or after thermal treatment at 900 °C. Hardened containing different amounts their behavior co...

Utilization of pozzolanic materials (fly ash, slag, zeolite, metakaolin, microsilica and more) in the manufacturing of cement and concrete has increased considerably over the last decades. Another option is to use concrete containing sulfate resisting cement. This could help minimize the harmful impacts on concrete exposed to an aggressive environment. The issue of the deteriorative impact of t...

The mechanical properties of high-strength ductile concrete (HSDC) have been investigated using Metakaolin (MK) as the cement replacing material and PVA fibers. Total twenty-seven (27) mixes of concrete have been examined with varying content of MK and PVA fibers. It has been found that the coarser type PVA fibers provide strengths competitive to control or higher than control. Concrete with co...

The production of cement results in emission of many green house gases in atmosphere, which are responsible for global warming. Hence, the researchers are currently focused on use of waste material having cementing properties, which can be added in concrete as partial replacement of cement, without compromising on its strength and durability, which will result in decrease of cement production t...