Laboratory Characterization of Cemented Tailings Paste Containing Crushed Waste Rocks for Improved Compressive Strength Development

2016 ◽  
Vol 35 (2) ◽  
pp. 645-662 ◽  
Author(s):  
Ibrahima Hane ◽  
Tikou Belem ◽  
Mostafa Benzaazoua ◽  
Abdelkabir Maqsoud
Keyword(s):  
Compressive Strength ◽  
Strength Development ◽  
Laboratory Characterization ◽  
Waste Rocks ◽  
Compressive Strength Development

Characterization of Conventional and Modern Curing Techniques in Concrete

2016 ◽  
Vol 711 ◽  
pp. 1118-1125
Author(s):  
Wasim Khaliq ◽  
Waqas Javaid
Keyword(s):  
Compressive Strength ◽  
Material Properties ◽  
Experimental Program ◽  
Strength Development ◽  
Vital Importance ◽  
Uniform Microstructure ◽  
Curing Methods ◽  
Compressive Strength Development ◽  
Strength And Durability

Appropriate curing of concrete is of vital importance in development of desired material properties in concrete namely compressive strength, durability, and dense uniform microstructure. Improper and intermittent curing is considered as one of the major reasons for concrete failures as evident in the form of cracks that consequently lead to durability issues of structures. An experimental program was designed to study the behavior of concrete under various conventional and modern curing techniques. Numerous cylindrical specimens were tested with different conventional and modern curing techniques to quantify their effects on curing of concrete. Microstructural and compressive strength development analyses at different ages were conducted to monitor the effect of curing methods. This work is helpful in establishing the best curing techniques for attainment of compressive strength and durability in concrete.

scholarly journals The potential use of pumice in mine backfill

2020 ◽  
Vol 1 ◽  
Author(s):  
Mohammed A. Hefni
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Mining Industry ◽  
Strength Development ◽  
Natural Pozzolan ◽  
Mine Backfill ◽  
Natural Pozzolans ◽  
Cemented Backfill ◽  
Compressive Strength Development ◽  
Potential Use

Abstract The use of natural pozzolans in concrete applications is gaining more attention because of the associated environmental, economic, and technical benefits. In this study, reference cemented mine backfill samples were prepared using Portland cement, and experimental samples were prepared by partially replacing Portland cement with 10 or 20 wt.% fly ash as a byproduct (artificial) pozzolan or pumice as a natural pozzolan. Samples were cured for 7, 14, and 28 days to investigate uniaxial compressive strength development. Backfill samples containing 10 wt.% pumice had almost a similar compressive strength as reference samples. There is strong potential for pumice to be used in cemented backfill to minimize costs, improve backfill properties, and promote the sustainability of the mining industry.

Model for compressive strength development of OPC concrete and fly ash concrete with time

2018 ◽  
Vol 70 (11) ◽  
pp. 541-557 ◽  
Author(s):  
Gollapalli S. Vijaya Bhaskara ◽  
Kanchi Balaji Rao ◽  
Madambikkattil B. Anoop
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Strength Development ◽  
Fly Ash Concrete ◽  
Compressive Strength Development
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