Aluminized layer of alpha-Fe including vanadium carbide particles is formed on SKD61 by heating at 1303 K, and the substrate transforms into martensite during N-2 gas flow cooling after heat treatment. By plasma nitriding of aluminized SKD61, hardness of HV1200-1600 is achieved at previously ...
The objective of this study was to evaluate the compatibility degrees among primary sawing residues of eight different hardwoods from Amazonia and Portland cement type II-Z and correlate them with their chemical composition. The compatibility degree was expressed using the Inhibitory Index and the chemi...
The materials used in this research were Portland cement type 52.5R and polyacrylate latex. Polyacrylate latex was obtained by emulsion polymerization, methyl methacrylate (MMA) and butyl acrylate (BA) as main monomers, acrylic acid (AA) as function monomer. The chemical composition of the cement ...
1. These three constituents in oxide form made up approximately 72 % of the total mass of the fly ash composition. Table 1 Chemical composition of fly ash (FA) and Portland Cement I 42.5 R (PC) Full size table Fig. 1 XRD analysis of fly ash sample Full size image Table 2 shows the...
The ratio of heat of hydration to chemical shrinkage for different cements used in this study ranges from 7500J/mL to 8000J/mL at 25°C and increases almost linearly with increasing curing temperature at a rate that varies only slightly with cement composition (approximately 58J/mL per °C)...
Objective: The composition similarity between Mineral Trioxide Aggregate (MTA) and Portland Cement (PC) enables the use of PC as an alternative to MTA. The aim of this study was to evaluate the setting time, radiopacity, compressive strength, flow and amount of arsenic in MTA (Angelus, Londri...
Portland cement clinker is man-made, and contains mainly four phases: Alite, belite, aluminate, and ferrite; however, we also called these phases as minerals. View chapterExplore book The Basic Properties of Building Materials In Building Materials in Civil Engineering, 2011 1 Chemical Composition...
Knowledge of accurate chemical thermodynamic data of nuclear materials and, in particular of elements (and their compounds) entering the fuel composition is absolutely essential in solving problems related to design and development of th... Choppin,R Gregory - Part 13 - The Gaseous Actinide Ions ...
The feasibility of using IOT to replace Portland clinker was investigated.Six types of IOT cement were developed from three IOT chemical composition samples and two IOT content.At 28 days, 10% IOT cements reached the minimum compressive strength of 40MPa while 20% IOT cement reached 32MPa.IOT ...
The composition of the pore solution varies significantly depending on the ratio of clinker and sulphate agent in cement. This may depend on the nature and structure of the effective component in the superplasticizer, which affect the plasticizing effect of superplasticizers. This should also be ...