The effect of the source of cement SO3 on the expansion of mortars
TLDR
In this article, the authors investigated the influence of gypsum, Bassanite and clinker sulfate on the cement paste expansion and the formation of delayed ettringite.About:
This article is published in Case Studies in Construction Materials.The article was published on 2016-06-01 and is currently open access. It has received 26 citations till now. The article focuses on the topics: Cement & Bassanite.read more
Citations
More filters
Journal ArticleDOI
Effects of sulfates on the hydration of Portland cement : a review
TL;DR: In this paper, a critical overview of the effect of sulfates on cement hydration, properties, and optimum sulfate content in Portland cement is presented, where the main methods used to determine the optimum SO3 content are reported, and the advantages and disadvantages are examined.
Journal ArticleDOI
Utilisation of construction and demolition waste as cemented paste backfill material for underground mine openings.
TL;DR: It is suggested that CDW materials can be suitably used as backfill material in the mining industry to fill underground voids created during the ore production and offers safe disposal and hence environmentally sound management of CDW.
Journal ArticleDOI
An Alternative to Conventional Rock Fragmentation Methods Using SCDA: A Review
TL;DR: In this article, soundless chemical demolition agents (SCDAs) have been used for rock fragmentation in the petroleum industry, where the resulting expansive pressure is sufficient to create an effective fracture network in the confined rock mass around the borehole.
Journal ArticleDOI
Investigation of geopolymers containing fly ash and ground-granulated blast-furnace slag blended by amorphous ratios
TL;DR: In this article, a new amorphous phase mix design framework was developed in consideration of calcium content through the combination of ground-granular blast-furnace slag (GGBFS) in fly ash (FA) blended geopolymers.
Journal ArticleDOI
Effects of nano sized sesame stalk and rice straw ashes on high-strength concrete properties
Ibrahim Hakeem,Mohamed Amin,Abdullah M. Zeyad,Bassam A. Tayeh,A. M. Maglad,Ibrahim Saad Agwa +5 more
TL;DR: In this article , the effects of using nano sesame stalk ash (NSSA) with rice straw ash (RSA) on high-strength concrete (HSC) properties were investigated using scanning electron microscopy with energy dispersive X-ray spectroscopy.
References
More filters
Journal ArticleDOI
Backscattered electron imaging of cementitious microstructures: Understanding and quantification
TL;DR: In this article, the general microstructural features of hydrated cement pastes are described and the possibilities to quantify backscattered electron imaging images of polished surfaces are described. And an example of the potential for BSE images to study concrete durability is given.
The effect of secondary ettringite formation on the durability of concrete: a literature analysis
TL;DR: A review and analysis of the available literature pertaining to the causes, effects and prevention of secondary (delayed) ettringite in concrete is presented in this paper, where the critical factors that determine extent of damage due to secondary ETTringite formation are (a) duration of delay period before heating the concrete; (b) severity of the heating and/or cooling regime; and (c) the SO3/Al2O3 ratio of the cement.
Journal ArticleDOI
Some factors affecting delayed ettringite formation in heat-cured mortars
TL;DR: In this article, the influence of pre-existing microcracking, wetting/drying cycles and the type of sulfated addition on delayed ettringite formation in steam cured mortars was studied.
Journal ArticleDOI
Expansion of portland cement mortar due to internal sulfate attack
TL;DR: In this paper, an exploratory test program was designed to determine the expansive potential of portland cement mortar due to internal sulfate attack initially moist-cured at high temperature, and the effect of different test parameters, such as, pre-storage time, curing temperature, type of sand, sand/cement ratio, specimen size and pre-treatment, on expansion behavior was determined.
Journal ArticleDOI
Distribution of sulfate between phases in Portland cement clinkers
TL;DR: Sulfate can occur in Portland cement clinkers as alkali sulfates, potassium calcium sulfate (calcium langbeinite), anhydrite, and as a substituent in the major phases, especially alite and belite as mentioned in this paper.
Related Papers (5)
Optimization of the SO3 content of an Algerian Portland cement: Study on the effect of various amounts of gypsum on cement properties
Siline Mohammed,Omary Safiullah +1 more