Abstract The manufacturing of cement liberates the green-house gasses into atmosphere. To overcome this problem so many alternative materials has been invented by researchers to minimize addition cement. incorporation these as cementitious material in concrete enhances attributes concrete. In scenario metakaolin gained momentum a substitution Most studied performance incorporating normal curing...

Construction and demolition waste (CDW) is the third-most abundant generated annually in countries of European Union. One alternatives to use these wastes geopolymeric materials. Partial replacement commonly used raw materials for production can help reduce number landfills consumption natural resources. In this study, authors partially replaced metakaolin fly ash with clay bricks concrete debr...

Original scientific paper In the paper an experimental research has been carried out regarding the possibility for the use of incinerated sewage sludge ash (ISSA) in the production of cement mortars with partial cement replacement. Different mixtures of cement mortar have been investigated, with comparison of its basic characteristics with and without certain amounts of added ISSA that was inci...

In this study, a novel approach to metakaolin dealumination to produce aluminum chloride from Egyptian kaolin has been described and the prepared aluminum chloride can be used to produce polyaluminum chlorides (PACs) with various basicities (B = OH/Al values). The prepared PACs which contain Al13 ([AlO4Al12(OH)24(H2O)12] 7+ ) was investigated using XRD and colorimetric method . In XRD spectra, ...

Geopolymers are a class of X-ray amorphous alkali aluminosilicate gel binder materials with potential applications in a wide range of areas. In particular, geopolymers can provide significant improvements over traditional Portland cement technology in applications requiring resistance to acid or salt attack, or thermal stability at temperatures up to 1000°C. The quasi-zeolitic nature of some of...