The effectiveness of mine backfilling depends on the properties of its constituents. The high cost of cement, which is commonly used as a binder in mine backfill, has led researchers to seek alternatives to partially replace it with other binders.
Mohammed Hefni, Maaz A. Ali
doaj +1 more source
Corrosion Behavior of Steel Reinforcement in Concrete with Recycled Aggregates, Fly Ash and Spent Cracking Catalyst [PDF]
The main strategy to reduce the environmental impact of the concrete industry is to reuse the waste materials. This research has considered the combination of cement replacement by industrial by-products, and natural coarse aggregate substitution by ...
Baeza Brotons, Francisco +4 more
core +2 more sources
Heats of hydration and pozzolan content of portland-pozzolan cements
Methods are described for the measurement of the approximate heat of solution in acid of portland-cement^-pozzolan mixtures. Examples are given of the estimation of the heat of hydration of portland-pozz olan cements. Determinations of the amount of material undissolved in the calorimeter, as well as the heats of solution, were applied to the problem ...
E.S. Newman, L.S. Wells
openaire +1 more source
Analysis of thermal process of pozzolan production
The objective of this study was evaluated the effect of heat treatment parameters on the pozzolanic activity of natural kaolin clays. The experimental design included three factors: kaolin type, temperature and time.
R. Mejía De Gutiérrez +2 more
doaj +1 more source
Some considerations about the use of lime-cement mortars for building conservation purposes in Portugal : a reprehensible option or a lesser evil? [PDF]
Some investigations about conservation actions in historical buildings points out that lime–cement mortars should be avoided and lime–pozzolan mortars should be use instead.
Faria, Joana +2 more
core +1 more source
Carbonation of concrete with construction and demolition waste based recycled aggregates and cement with recycled content [PDF]
Durability is a major concern in concrete (particularly recycled concrete) structures exposed to carbonation-induced corrosion, given the social, economic, environmental and safety implications involved.
De Belie, Nele +4 more
core +1 more source
Effects of the secondary minerals of the natural pozzolans on their pozzolanic activity
Abstract Natural pozzolans have been widely used as substitutes for Portland cement, because of their binding properties. Some of them are natural volcanic rocks which contain secondary minerals such as clays and zeolites corresponding to products of the alteration of the rock.
Habert, Guillaume +4 more
openaire +3 more sources
Made up of an engineered mix of ordinary Portland cement (OPC) with artificial pozzolans such as trass, fly ash, and slag, the blended cements have been intensely employed within cementitious materials.
Ilker Ustabas +3 more
doaj +1 more source
Application of power ultrasound to cementitious materials: Advances, issues and perspectives [PDF]
Novel techniques such as power ultrasound (PUS) are currently under consideration to improve the hydration of cementitious materials and to promote the effectiveness of replacing supplementary cementitious materials; SCMs, in terms of mechanical ...
Akkaya +88 more
core +1 more source
Use of gypsum and bagasse ash for stabilization of low plastic and high plastic clay
Clays have a tendency to undergo volumetric changes when they interact with water. These soils are a very common reason for most of the foundation failures due to their degraded properties.
Sadam Hussain Khan
doaj +1 more source

