Valorization of phosphogypsum in cement-based materials: Limits and potential in eco-efficient construction

BRS Calderón-Morales, A García-Martínez… - Journal of building …, 2021 - Elsevier
Phosphogypsum (PG) is a type of synthetic gypsum generated during the production of
phosphoric acid. Each ton of phosphoric acid generates 5 tons of phosphogypsum. This …

Limestone and silica powder replacements for cement: Early-age performance

DP Bentz, CF Ferraris, SZ Jones, D Lootens… - Cement and Concrete …, 2017 - Elsevier
Developing functional concrete mixtures with less ordinary portland cement (OPC) has been
one of the key objectives of the 21st century sustainability movement. While the supplies of …

[HTML][HTML] Determination of the degree of hydration of Portland cement using three different approaches: Scanning electron microscopy (SEM-BSE) and …

DC Chu, J Kleib, M Amar, M Benzerzour… - Case Studies in …, 2021 - Elsevier
Cement paste hydration is a complex physical-chemical process. The aim of this paper is to
use three approaches to determine the degree of hydration: portlandite quantification …

Multi-scale investigation of the performance of limestone in concrete

DP Bentz, A Ardani, T Barrett, SZ Jones… - … and Building Materials, 2015 - Elsevier
Abstract Limestone (calcium carbonate, CaCO 3) has long been a critical component of
concrete, whether as the primary raw material for cement production, a fine powder added to …

Properties and durability of concrete produced using CO2 as an accelerating admixture

S Monkman, M MacDonald, RD Hooton… - Cement and Concrete …, 2016 - Elsevier
Carbon dioxide was investigated for use as a beneficial admixture to concrete as it was truck
mixed. The reaction between the CO 2 and the hydrating cement creates finely distributed …

Utilization of biochar from unwashed peanut shell in cementitious building materials–Effect on early age properties and environmental benefits

S Gupta, A Kashani - Fuel Processing Technology, 2021 - Elsevier
Early stage and fresh properties of cementitious materials are critical to ease of placement
and durability. This study investigated the potential of biochar, prepared by pyrolysis of …

Experimental studies on hydration–strength–durability of limestone-cement-calcined Hwangtoh clay ternary composite

RS Lin, HS Lee, Y Han, XY Wang - Construction and Building Materials, 2021 - Elsevier
Hwangtoh clay is a type of kaolin clay, which is used as an environment-friendly material in
constructions. This study presents multiple experimental studies on the hydration, strength …

Application of internal curing for mixtures containing high volumes of fly ash

I De la Varga, J Castro, D Bentz, J Weiss - Cement and Concrete …, 2012 - Elsevier
This paper focuses on testing performed on mixtures that would be consistent with the
mortar portion of a concrete bridge deck mixture for many state departments of …

One year geopolymerisation of sodium silicate activated fly ash and metakaolin geopolymers

Z Sun, A Vollpracht - Cement and Concrete Composites, 2019 - Elsevier
This paper presents the evolution of mechanical and chemical properties of sodium silicate
activated fly ash and metakaolin geopolymers in one year time scale. The initial curing …

Correlation analysis and statistical assessment of early hydration characteristics and compressive strength for multi-composite cement paste

Z Li, X Gao, D Lu - Construction and Building Materials, 2021 - Elsevier
Abstract Analysis of linear and nonlinear dependencies of hydration characteristics and
strength development is of interest for reliable and cost-effective designs. In this paper, the …