Results 91 to 100 of about 8,920 (223)
Kinetics of lime/bentonite pozzolanic reactions at 20 and 50 °C: Batch tests and modeling
, 2014 International audienceThe effects of duration (1-100 days) and temperature (20 and 50 °C) were assessed from batch tests for Ca-bentonite mixed with 10 wt.% lime. The pozzolanic processes were monitored over time by 29Si NMR (Cement Concr. Res. 42, 2012),
de Windt, Laurent +2 more
core +4 more sources
Review of Carbonation Resistance in Hydrated Cement Based Materials
Journal of Chemistry, 2019 Blended cements are preferred to Ordinary Portland Cement (OPC) in construction industry due to costs and technological and environmental benefits associated with them. Prevalence of significant quantities of carbon dioxide (CO2) in the atmosphere due to
Joseph Mwiti Marangu +2 more
doaj +1 more source
Hydration and strength development in blended cement with ultrafine granulated copper slag.
PLoS ONE, 2019 This study aims at evaluating the effect of ultrafine granulated copper slag (UGCS) on hydration development of blended cement and mechanical properties of mortars.
Yan Feng +6 more
doaj +1 more source
Effect of three natural pozzolans in portland cement hydration
Materiales de Construccion, 2003 Natural pozzolans have been used since ancient times and continues to be used today. The chemistry and morphological composition of natural pozzolans and their particle size distribution allows classifying them as more or less reactive pozzolan.
V. Rahhal, R. Talero
doaj +1 more source
Performance of Potential Pozzolanic Cement in Chloride media
IOSR Journal of Applied Chemistry, 2014 The paper presents finding of the pozzolanic activity of calcined clays from selected regions of Embu County - Kenya. The results are also presented for the compressive strength development and Chloride ingress resistance of the blend of the calcined clays with Ordinary Portland Cement (OPC), vis a vis commercial OPC and Portland Pozzolana cement (PPC).
Marangu J.M +2 more
openaire +1 more source
Solidification of APC residues using PFA
, 2009 A pulverised fuel ash (pfa) classed as a waste due to high loss on ignition (LoI) was blended with waste alkali and used to solidify air pollution control (APC) residue from a waste incinerator.
Black, L, Shirley, R
core
Effects of Supplemetary Cementitious Materials on the Air Permeability of Concrete [PDF]
, 2017 In order to support the use of cement combination concrete in construction, this paper investigated the resistance of Portland cement and some binary and ternary cement concretes containing fly ash, silica fume and metakaolin to air permeability at equal
Folagbade, Samuel Olufemi
core
Materiales de Construccion, 2002 The processing of standard mortar is completed following different methods in accordance with the country, but they exist two fundamental tendecies, the ISO and the ASTM.
M. Gener Rizo, J. L. Álvarez Cabrera
doaj +1 more source
ResourcesThis paper presents the characterization of a binary mixture of construction and demolition waste (CDW) and bamboo leaf ash (BLAsh) calcined at 600 °C (novel mixture) and the study of its pozzolanic behavior.
Javier Villar-Hernández +3 more
doaj +1 more source
Materiales de Construccion, 2016 Utility properties of novel hybrid cement (H-Cement) are influenced by pozzolanic reaction of fly ash, latent hydraulic reaction of metallurgical slag together with the alkali activation of inorganic geopolymer based on precipitated waste water coming ...
P. Martauz +3 more
doaj +1 more source