Results 1 to 10 of about 23,967 (213)
FES Journal of Engineering Sciences, 2021 The standard mix ratio of lime: pozzolana specified by all standards is 1:2 by weight to produce lime pozzolan cement (LPC) with the minimum required strength of 4 MPa. This ratio may be affected by many factors such as the quality of lime and pozzolana, in adition to the quantity of amorphous silica in pozzolana.
El-Sharif M. I +2 more
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Effect of mixing metakaolins: Methodological approach to estimate metakaolin reactivity
Ceramics International, 2023 International audience ; Geopolymers are obtained from an alkali silicate solution and aluminosilicate sources. The source commonly used geopolymer is metakaolin. The chemical composition, extraction site or calcination process of metakaolin influence its reactivity and thus the properties of the consolidated samples.
W. N'cho +5 more
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Influence of Thermal Treatment on Kankara Kaolinite [PDF]
, 2013 In this work, the influence of thermal treatment on the structure of Kankara kaolinite was studied for the first time, using X-ray diffractogram (XRD), EDX, NanoSEM, FTIR-Attenuated Total Reflectance, DTA/TGA and BET surface area measurements.
Aderemi, BO +4 more
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An alternative methodology to predict aging effects on the mechanical properties of glass fiber reinforced cement (GRC) [PDF]
, 2012 The effect of three different aging methods (immersion in hot water, freeze–thaw cycles and wet–dry cycles) on the mechanical properties of GRC were studied and compared.
Enfedaque Díaz, Alejandro +2 more
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A Study on Ordinary Portland Cement Blended with Rice Husk Ash and Metakaolin [PDF]
, 2020 . This paper tries to investigate the effect of replacing Ordinary Portland cement (OPC) with Metakaolin (MK) and Rice husk ash (RHA) on the physicomechanical properties such as consistency, setting times, soundness and mortar compressive strength of ...
Ayeni, Sholaremi +4 more
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Failure and impact behavior of facade panels made of glass fiber reinforced cement(GRC) [PDF]
, 2011 GRC is a cementitious composite material made up of a cement mortar matrix and chopped glass fibers. Due to its outstanding mechanical properties, GRC has been widely used to produce cladding panels and some civil engineering elements.
A. Enfedaque +18 more
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Hydrometallurgical extraction of Al and Si from kaolinitic clays [PDF]
, 2017 Herein is presented the results of a study on the hydrometallurgic extractionand recovery of aluminum and silicon by leaching of kaolinitic clays with HF. Thestudied extraction parameters were: temperature, reaction time, solid/liquid ratio,concentration,
Pinna, Eliana Guadalupe +3 more
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Encapsulation of Cs/Sr contaminated clinoptilolite in geopolymers produced from metakaolin [PDF]
, 2015 The encapsulation of caesium (Cs) and strontium (Sr) contaminated clinoptilolite in Na and K based metakaolin geopolymers is reported. When Cs or Sr loaded clinoptilolite is mixed with a metakaolin geopolymer paste, the high pH of the activating solution
Bensted, J +6 more
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Analysis of glass fiber reinforced cement (GRC) fracture surfaces [PDF]
, 2010 Glass fiber reinforced cement (GRC) is a composite material produced by the union of a cement mortar matrix and chopped glass fibers. Its good mechanical properties deteriorate with time. This phenomenon has been studied performing a tensile test program
Alejandro Enfedaque +18 more
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Durability Study of Metakaolin Concrete [PDF]
Port-Said Engineering Research Journal, 2020 ABSTRACT: This paper aims to highlight the impact of using metakaolin on engineering properties of structural concrete. Metakaolin solved the pollution problem resulting from concrete industry. Metakaolin produced by Calcining Kaolinite at high temperature to get pozzolanic material which can be used in concrete mixes.
saly nour eldin +3 more
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