Results 81 to 90 of about 14,253 (226)
Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]
In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
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Abstract The hydration process of ordinary Portland cement (OPC) involves intricate interactions among ions in the pore solution, dissolving clinker phases, and precipitating hydrates. Tricalcium aluminate (C3A${\rm C}_3{\rm A}$) shows the highest reactivity of the cement clinker phases during the initial hydration stages of OPC. The kinetic control of
Daniel Axthammer +6 more
wiley +1 more source
Solidification/stabilisation of soil contaminated with metal: a review [PDF]
Solidification/stabilisation (S/S) is generically defined as a chemical and physical alteration technique of reducing the mobility as well as solubility of contaminants in wastes in order to convert them into chemically inert form.
Goh, B.M., Yin, C-Y
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Effects of a novel calcium aluminate cement on the early events of the progression of osteogenic cell cultures [PDF]
The present study evaluated the progression of osteogenic cell cultures exposed to a novel calcium aluminate cement (CAC+) in comparison with the gold standard mineral trioxide aggregate (MTA). Cells were enzimatically isolated from newborn rat calvarial
CASTRO-RAUCCI, Larissa Moreira Spinola de +5 more
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Solidification/stabilization (S/S) is a widely adopted remediation technique for contaminated soils. However, how to efficiently and economically modify contaminated soil remains challenging. In this study, secondary aluminum ash slag (AAS) was employed as a novel stabilizer for the S/S treatment of lead (Pb) and zinc (Zn) contaminated soils.
Haohua Wang +6 more
wiley +1 more source
Industrial wastes, agricultural byproducts, and rock dust are considered suitable replacements for cement in eco‐friendly concrete production due to their comparable chemical properties. This study evaluates 13 ash sources as potential cement alternatives, explores machine learning (ML) algorithms to predict compressive strength (fc′) of ash‐blended ...
Mahder Ketemaw Abitew +3 more
wiley +1 more source
Potential of Saudi Arabian bauxite to produce low-carbon cement
To produce calcium aluminate cement (CAC), bauxites are usually fused with lime/limestone at high temperature (1600 °C). At this temperature, the bauxite´s hydrates of alumina break down - dehydroxylation - and combine with calcium forming monocalcium ...
S. Pavia, O. Alelweet
doaj +1 more source
With the rapid development of urban infrastructure in China, engineering muck has emerged as a potential urban risk. The improper disposal of engineering muck not only results in the inefficient occupation of land resources but also poses serious threats to ecological systems and geotechnical stability.
Kai Cao +3 more
wiley +1 more source
Use of reinforced inorganic cement materials for spark wire and drift chamber wire frames [PDF]
The results of a survey, materials test, and analysis study directed toward the development of an inorganic glass-fiber reinforced cement material for use in the construction of space qualified spark wire frames and drift chamber frames are presented ...
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Early-age monitoring of fresh cementitious material by acoustic emission [PDF]
Concrete properties are mainly affected by the fresh state since it has a significant impact on the long-term concrete performance. In this study, acoustic emission (AE) was applied to monitor the behavior of fresh cement paste.
Aggelis, Dimitros +2 more
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