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Use of Industrial Waste Slag in Alkali-Activated Slag Ceramsite Concrete Hollow Blocks
- Source :
- Applied Sciences, Vol 8, Iss 12, p 2358 (2018), Applied Sciences, Volume 8, Issue 12
- Publication Year :
- 2018
- Publisher :
- MDPI AG, 2018.
-
Abstract
- In this paper, a parametric experimental study developing the alkali-activated slag concrete hollow block (AASCHB) is discussed. Fourteen trial mixes of alkali-activated slag concrete containing pottery sand and ceramsite with different water-to-slag ratios, sand ratios, silicate moduli, and Na2O contents were evaluated to determine the optimal mix for high compressive strength and low drying shrinkage. All four factors evaluated were found to be significant for the desired properties. A series of 390 &times<br />190 &times<br />190 mm3 AASCHBs were prepared using the optimal mix with a water-to-slag ratio of 0.35, sand ratio of 0.64, silicate modulus of 1.2, and Na2O content of 8%. The compressive strength, flexural strength, water absorption, and moisture content tests of these blocks indicate that the resulting AASCHB can be classified under the strength grade of MU15 as a load-bearing hollow concrete block. The proposed AASCHBs appear to provide a viable solution to the environmental problems of industrial waste and cement production emissions, leading to more sustainable buildings without compromising structural performance.
- Subjects :
- Materials science
Absorption of water
02 engineering and technology
01 natural sciences
lcsh:Technology
Industrial waste
lcsh:Chemistry
chemistry.chemical_compound
Flexural strength
0103 physical sciences
alkali-activated slag concrete
General Materials Science
drying shrinkage
Instrumentation
lcsh:QH301-705.5
Shrinkage
010302 applied physics
Fluid Flow and Transfer Processes
Cement
lcsh:T
Process Chemistry and Technology
Metallurgy
General Engineering
Slag
021001 nanoscience & nanotechnology
compressive strength
Silicate
lcsh:QC1-999
Computer Science Applications
Compressive strength
chemistry
concrete mix ratios
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
visual_art
visual_art.visual_art_medium
0210 nano-technology
lcsh:Engineering (General). Civil engineering (General)
hollow concrete block
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 20763417
- Volume :
- 8
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....e9b78ce58cefe7f4e1a3e1f737c6aa14