Assessment of Recycled Toilet Bowl Wastes as Pozzolanic Materials: Material Characterization and Performance of Mortar Mixtures

2021 ◽  
Vol 1023 ◽  
pp. 135-140
Author(s):  
Akbota Aitbayeva ◽  
Chang Seon Shon ◽  
Di Chuan Zhang ◽  
Jong Ryeol Kim
Keyword(s):  
Compressive Strength ◽  
Chemical Composition ◽  
Construction Materials ◽  
Xrd Analysis ◽  
Strength Development ◽  
Test Specifications ◽  
Compressive Strength Development ◽  
Pozzolanic Materials ◽  
And Performance ◽  
Class F Fly Ash

The growing demand for finding alternative applications for ceramic products wastes develops their usage as construction materials. The main objective of this paper is to evaluate the feasibility of recycled toilet bowl (RTB) wastes as pozzolanic materials in mortar mixture. The properties of RTB material were examined in terms of chemical composition, particle size distribution (PSD), X-ray diffraction (XRD) analysis, compressive strength, pozzolanic reactivity, sulfate resistance, and alkali-silica reaction according to ASTM C 618 and C 311 test specifications. The results demonstrated that the use of RTB materials as pozzolanic materials positively affects compressive strength development and durability by fully corresponding to all criteria of the ASTM C 618 guideline. Furthermore, chemical composition, PSD, and XRD test results had equivalent values to ASTM class F fly ash analysis.

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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