Results 131 to 140 of about 3,478 (197)
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Pozzolana and Pozzolanic Cements—A Review Part I: Pozzolana

Transactions of the Indian Ceramic Society, 1981
In this review, different types of pozzolanas, their activity in relation to different factors, various methods for evaluation of their reactivity and their hydration etc have been discussed. Some of the important parameters by which the reactivity of a pozzolana is influenced have been stated to be microstructure, temperature of calcination and ...
C. Samanta, M. K. Chatterjee
openaire   +1 more source

Optimization of Conditions for the Determination of Pozzolana Content in Portland Pozzolana Cement and other Blended Cements

Transactions of the Indian Ceramic Society, 1989
Determination of pozzolana content in portland pozzolana cement (PPC) by the hydrochloric acid extraction technique has been already investigated. In the existing methods the varying degree of dissolution of pozzolana contents causes its over- or underestimation. This could be eliminated by using dilute hydrochloric acid (0.4 M) of known volume. In the
M. S. Surana, S. N. Joshi
openaire   +1 more source

Pozzolana from bauxite waste

Conservation & Recycling, 1978
Abstract Preliminary investigations into the utilization of bauxite waste has shown that with a suitable heat-treatment followed by ball-milling to cement fineness, a material with pozzolanic activity, referred to as bauxite pozzolana, can be produced.
V.O. Nwoko, A.A. Hammond
openaire   +1 more source

Pozzolanas and Pozzolanic Materials

2019
Developments in concrete construction mean that there are now a broader range of cementitious materials, than have traditionally been available, providing options for engineers to meet specific technical requirements. Pozzolanas and pozzolanic materials from natural deposits or industrial processes represent a group within this category.
McCarthy, Michael John   +1 more
openaire   +2 more sources

Investigating the effect of accelerated carbonation curing duration on Portland and pozzolana cement‐based concrete

Structural Concrete
Accelerated carbonation curing (ACC) has emerged as a viable method to improve the sustainability and durability of construction materials, especially in precast concrete applications.
Himanshu Guleria, S. Goyal
semanticscholar   +1 more source

Removal of Textile Dye from Aqueous Solution Using Immobilized Cells on Column pozzolana Bed Reactor

Journal of the Chemical Society of Pakistan, 2023
Textile dyes are hazardous and carcinogenic materials. Hence, their removal from wastewater is globally required. This research aims to remove anionic dye red bemacid E-TL from aqueous solutions using a biofilm supported on granular pozzolana in a fixed ...
Cherifi Souad Cherifi Souad   +4 more
semanticscholar   +1 more source

Simpler tests for lime-pozzolanas

Batiment International, Building Research and Practice, 1981
Lime-pozzolana mixtures could be a useful alternative to costly cements for many developing countries, but evaluating local samples can be a problem. This article describes simple tests with 25 mm cubes cast in gang moulds which can easily be carried out in the field and which give a good correlation with the results of medium-term strength tests.
R.J.S. Spence, W.J. Allen
openaire   +1 more source

Eco-friendly production of compressed earth blocks with Moroccan pozzolana as a cement alternative

Research on Engineering Structures and Materials
This study explores the potential use of naturally and locally available pozzolana as an eco-friendly alternative to cement in the manufacture of compressed earth blocks (CEBs).
Amine Bennis   +5 more
semanticscholar   +1 more source

Influence of (1D/2D) hybrid nanomaterials on the mechanical and durability properties of pozzolana portland cementitious mortar

Journal of Adhesion Science and Technology, 2023
This paper investigates the mechanical, microstructural, and durability properties (acid/sulfate attack, water absorption, electrical resistivity, and drying shrinkage) of carbon nanomaterial cementitious mortars (CCMs).
Kanchna Bhatrola, N. C. Kothiyal
semanticscholar   +1 more source

Using local sandstone as a pozzolana

Batiment International, Building Research and Practice, 1981
Could sandstone waste from phosphate ore mining in Egypt's Western Desert be an effective and economic additive to ordinary Portland cement? The question led to experiments from which it appears that a 15 per cent addition of the gluconitic sandstone involved has little effect on compressive strength.
M.A. Shater   +3 more
openaire   +1 more source

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