Effect of binary blended pozzolanic materials on properties of self-compacting concrete

Muhammad, Abubakar; Usman, Nasir; Gambo, Nuru

doi:10.1080/15623599.2019.1707500

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…As it can be seen, the contents of silicon dioxide (SiO 2 ), aluminium oxide (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ) were obtained as 90.11%, 1.19%, and 0.84% for the RHA and 5.25%, 38.22%, and 13.87% for the CAC, respectively. These values are in good agreement with the ranges reported by Givi et al [23], Adams et al [16], and Muhammad et al [24]. Therefore, the chemical compositions of RHA and CAC in this study seem reasonable.…”

Section: Methodssupporting

confidence: 93%

Silicate impurities incorporation in calcium aluminate cement concrete: mechanical and microstructural assessment

Abolhasani

Aslani

Samali

et al. 2021

Advances in Applied Ceramics

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In this paper, the effect of rice husk ash (RHA), as silicate impurities, on the microstructure and mechanical properties of calcium aluminate cement concrete (CACC) is explored. Various mechanical tests, including tests for obtaining the compressive, splitting tensile, flexural strengths and elastic modulus, were performed on different mixture designs containing different volume percentages of RHA (0, 2.5, 5, 7.5, and 10%) at W/Cs of 0.4 and 0.5. Furthermore, the impact of RHA on the microstructure of this concrete was examined through careful analysis of the scanning electron microscope (SEM) images and energy dispersive X-ray spectroscopy (EDS) results. The results demonstrate that, At W/C of 0.5, the microstructure and mechanical properties were improved, with the greatest improvement for the RHA substitution percentage of 5%. However, at W/C of 0.4, the addition of RHA showed no positive effect, which can be attributed to a higher specific surface area of RHA than cement.

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Section: Methodssupporting

confidence: 93%

Silicate impurities incorporation in calcium aluminate cement concrete: mechanical and microstructural assessment

Abolhasani

Aslani

Samali

et al. 2021

Advances in Applied Ceramics

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Effect of Combined Supplementary Cementitious Materials on the Fresh and Mechanical Properties of Eco-Efficient Self-Compacting Concrete

et al. 2021

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Procurement planning factors influencing the quality performance of primary healthcare building facilities: A mediation effect of the firm’s business partnership

Gambo

Musonda

2021

Cogent Engineering

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The paper reports on an assessment of the mediation effect of a firm's business partnership on procurement planning factors influencing the quality performance of primary healthcare building facilities. A quantitative data collection approach was adopted in the study using structured questionnaires circulated to 520 respondents comprising project managers in the Nigerian construction industry. A stratified proportionate random sampling method was used for the selection of respondents which yielded 370 responses and 357 were used for analysis. Findings were that procurement planning factors influenced the quality performance of primary healthcare building facilities, and the firm's business partnerships mediate the relationship between procurement factors and quality performance of primary healthcare building facilities. This study serves as awareness to governments and other stakeholders in the construction industry on the provision of quality primary healthcare building facilities by leveraging a firm's business partnership as a mediating factor. Findings show that the relationship would enhance the rapid provision of quality healthcare building facilities for the growing population of

show abstract

Effect of binary blended pozzolanic materials on properties of self-compacting concrete

Cited by 3 publications

References 13 publications

Silicate impurities incorporation in calcium aluminate cement concrete: mechanical and microstructural assessment

Silicate impurities incorporation in calcium aluminate cement concrete: mechanical and microstructural assessment

Effect of Combined Supplementary Cementitious Materials on the Fresh and Mechanical Properties of Eco-Efficient Self-Compacting Concrete

Procurement planning factors influencing the quality performance of primary healthcare building facilities: A mediation effect of the firm’s business partnership

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