Results 11 to 20 of about 1,460 (211)

Modeling the cementitious effect of the Pozzolana on the compressive strength of concrete

open access: yesCogent Engineering, 2018
The natural Pozzolana is a siliceous material (SiO2) that reacts with the calcium hydroxide Ca(OH)2 produced during the hydration period of the cement; this inherent feature increases the cementitious property of the grout and improves the compressive ...
Afif Rahma, Haifaa Jomaa
doaj   +2 more sources

A Quality Control Scheme for a Commercial Pozzolana Plant: A Case Study of Pozzolana Ghana Ltd

open access: yesGhana Journal of Science, 2019
A Quality control scheme was developed for a 200 ton per day commercial pozzolana plant. The scheme was evaluated for the first 34 days of production. Statistical Process Control tech­niques were specifically applied to the mechanical properties of setting times and compressive strength.
J. Sarfo-Ansah   +3 more
openaire   +3 more sources

The Apparent Thermal Conductivity of Pozzolana Concrete

open access: yesPhysics Procedia, 2011
AbstractThe recent development of some lightweight construction materials, such as light concrete, can play an important role as an insulator, while maintaining sufficient levels of mechanical performance. The quality of insulation to provide depends on the climate, the exposure of the walls and also the materials used in the construction.
Bessenouci, M. Z.   +4 more
openaire   +3 more sources

3D printed concrete using Portland pozzolana cement - fly ash based [PDF]

open access: yesE3S Web of Conferences
This project investigates the feasibility and properties of 3D printed concrete using Portland Pozzolana Cement (PPC). The increasing demand for construction materials, particularly ordinary Portland cement (OPC), has led to a surge in its usage ...
Ibrahim A Mohamed, Kumar N Senthil
doaj   +2 more sources

COMPARISON OF STRENGTH AND DURABILITY OF CONCRETES MADE WITH SULFATE-RESISTANT PORTLAND CEMENT AND PORTLAND CEMENT WITH POZZOLANA ADDITIVE

open access: yese-GFOS, 2019
In this study, a comparison of the strength and durability of concrete with sulfate-resistant cement and cement with pozzolana additive was performed.
Sergii Kroviakov   +3 more
doaj   +3 more sources

Mechanochemical treatment of Serbian kaolin clay to obtain high reactive pozzolana [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
Mechanochemical treatment of Serbian kaolin clay was carried out in a planetary ball mill using two different milling media, hardened steel or zirconia vials and balls. The samples obtained with various milling times were characterized by the particle
Mitrović Aleksandra, Zdujić Miodrag
doaj   +1 more source

Application of FOSM and Chebyshev’s Theorem Concept to Predict Compressive Strength Attributes of Corncob Ash Embedded Cement Concrete [PDF]

open access: yesComputational Engineering and Physical Modeling, 2020
In the present study the physical and mechanical properties of Corn Cob Ash (CCA) embedded cement concrete of mix proportions 1:1.6:2.6 and water-cement ratios of 0.45 were examined and compared with conventional cement concrete.
B S Keerthi Gowda, M S Dakshayini
doaj   +1 more source

POZZOLANA MORTAR AND PINE TIMBER [PDF]

open access: yesNature, 1878
n ...
Maxwell, Henry H., Tyndall, R. A.
openaire   +2 more sources

Effect of thermo-activation on mechanical strengths and chlorides permeability in pozzolanic materials

open access: yesCase Studies in Construction Materials, 2018
The present research aimed to study the combined effects of natural pozzolana and curing on the compressive and flexural strengths of mortars; it also investigated the chloride permeability of concrete.
M. Elbar   +4 more
doaj   +1 more source

Coupled Effect of temperature and additions on the rheological behavior of concrete equivalent mortars (CEM) [PDF]

open access: yesMATEC Web of Conferences, 2020
The aim of this work is to study the influence of mineral additions on the rheological behavior of low impact environmental concrete with its concrete equivalent mortar (CEM) at different temperatures.The experimental study is carried out on cement-based
Dada El Hadja   +3 more
doaj   +1 more source

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