![]() ![]() Before mixing, polycarboxylate superplasticizers (PCE) solution was prepared with deionized water. Properties of Cement Paste and MortarĬement paste and mortar are prepared with a water/cement ratio (w/c) of 0.32, using a blade-type high shear blender. The average size of Titanium Oxide was 25 nm with 99.8% metals basis from Particle Size Analyzer.Ģ.1.7. Pure water (deionized water) was used to make mortar specimen and cement paste.Ģ.1.6. The properties are assumed to be same as that of normal water. ![]() Many studies have been conducted with the aim of reducing the cost of cement for soil stabilization one option is to partially replace cement with waste materials such as fly ash. Chemical and mineral compositions of cement (Wt/%).Ĭost and most widely used materials in the world, cement raises many concerns for the environment and human health. Previous researchers showed that fly ash is a potential source of construction material and soil stabilizer. A viable solution to the problem is reclamation of Fly ash for Civil Engineering applications. The disposal of fly ash poses increasingly difficult problems for many urbanized regions. The mineral phases were calculated by The Bogue Method. The Content of F-Cao was analyzed by the Franke Method. The contents of oxides were measured Through X-Ray Fluorescence. ![]() Chemical Composition, Mineral Composition, as well as Physical Performance of the cement, are shown in Table 1. Ordinary Portland cement (Chinese Standard GB 8076-2008) Classified as 42.5R was applied in This Study. The properties of these materials are presented below. The materials used to design the mix for C 30, C 40, grade of concrete is cement, fly ash grade II, sand, coarse aggregate, water, and Titanium dioxide (TiO 2) admixture. The theory is supplemented with a number of pictures to have a clear idea of the methods. This chapter is concerned with the details of the properties of the materials used, the method followed to design the experiment and the test procedures followed. In this article, we are interested in improving the crack resistance, improving the mechanical properties of concrete using titanium dioxide and fly ash. have shown that the use of nanomaterials by replacement of a proportion of cement can lead to a rise in the compressive strength by developing supplementary chemical reactions of the concrete as well as a check to pollution. It is in this sense that designed concrete based on volcanic ash and found mechanical properties similar to those of ordinary cement concrete.Īt the same time, nanomaterials are showing their interest, with a large number of researchers looking to them as an alternative. But, cement is a major source of pollution It is for this reason that several authors have been interested in finding new materials to limit the use of cement. The increased use of cement is essential in attaining a higher compressive strength. This makes concrete to be one of the most investigated materials of the 21st century. Cement is the main constituent of the concrete, the widely used in structures, from buildings to factories, from bridges to airports. The four major compounds that constitute cement (Bogue’s Compounds) are Tricalcium silicate, abbreviated as C 3S, Dicalcium silicate (C 2S), Tricalcium aluminate (C 3A), Tetracalcium aluminoferrite (C 4AF) where C stands for CaO, S stands for SiO 2, A stands for Al 2O 3 and F for Fe 2O 3. Cement can be described as a crystalline compound of calcium silicates and other calcium compounds having hydraulic properties.
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