CHEMICAL ADMIXTURE COMPOSITION FOR CONCRETE PRODUCTPURPOSE: To obtain an chemical admixture composition capable of reducing viscosity of concrete without damaging water reducing properties by blending a formaldehyde co-condensate with specific aromatic compounds with a defoaming agent.YAMATO FUJIO...
Cement & Concrete ResearchMORAGUES, A. MACIAS, A. and ANDRADE, C. and LOSADA, J. (1988). "Equilibria of the Chemical Compositionof the Pore Concrete Solution, Part II: Calculation of the Equilibria Constants of the Synthetic Solutions". Cem. Concr. Res. Vol. 18, pp. 342-350....
This paper aims to semi-quantitatively and qualitatively demonstrate ability of CO2 injection on microstructure and chemical composition of concrete, cement and recycled aggregate. The injection of CO2 into recycled aggregate creates CO2 Aggregate. Furthermore, the mixing of CO2 aggregate into concrete ...
in terms of the composition parameters and environmental conditions: the molar concentration of those constituents that are susceptible to carbonation; the porosity and pore-size distribution; the degree of saturation of the pores; and the effective diffusivity of gases through the concrete. ...
铝土层数被安置在煤层的上面和底部为了保证一致的热化和防止驱散细煤炭微粒。[translate] aTable 1 shows the chemical composition of the raw material and the mixture. 表1显示原料和混合物的化学成分。[translate]
Using an electron microscope, X-ray micro-diffraction and Raman spectroscopy, the researchers were able to map the distribution of elements in remaining Roman architectural works. What they found was significant amounts of tobermorite growing through the composition of the concrete, and a relat...
Energy and chemical composition dependence of mass attenuation coefficients of building materials 来自 国家科技图书文献中心 喜欢 0 阅读量: 39 作者:C Singh,T Singh,A Kumar,GS Mudahar 摘要: Total and partial mass attenuation coefficients of different building materials (glass, concrete, marble, fly...
Analytical investigation of a concrete of Jasminum azoricum L. by GC and GC/MS allowed us to identify about 40 constituents. The major components were (E,E)-farnesol (30.1%) and geranyl linalool (21.7%). The composition of the concrete i... E.,Peyrot,J.,... - 《Journal of Essential...
1 Chemical Composition The chemical composition refers to the chemical constituents. Various chemical compositions result in different properties. For example, with the increase of carbon content, the strength, hardness and toughness of carbon steel will change; carbon steel is easy to rust, so stainl...
The introduction of the SJ-1 superplasticizer into the composition of concrete mixes significantly changes their properties. Superplasticizer increases the mobility of the concrete mix, improves workability properties, reduces water demand and others.The introduction of superplasticizer reduces water-cement ...