Utilisation of supplementary cementitious materials from agricultural wastes: a review

被引:4
作者
Fadele, Oluwadamilola [1 ]
Otieno, Mike [1 ]
机构
[1] Univ Witwatersrand, Sch Civil & Environm Engn, Johannesburg, South Africa
基金
新加坡国家研究基金会;
关键词
concrete technology & manufacture; materials technology; sustainability; RICE HUSK ASH; OIL FUEL ASH; BAGASSE ASH; PORTLAND-CEMENT; HIGH-VOLUME; FLY-ASH; MECHANICAL-PROPERTIES; TRANSPORT-PROPERTIES; BLENDED CEMENT; STRENGTH;
D O I
10.1680/jcoma.19.00098
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper presents a critical literature review on the use of supplementary cementitious materials (SCMs) from agricultural wastes (mainly from crop residues) in cementitious systems. The current utilisation of these materials as partial replacement of Portland cement is reviewed with respect to the influence of the materials' characteristics on the performance and the limit of replacement in cementitious systems. In spite of the benefits of SCMs from agricultural wastes (such as rice husk ash, palm oil fuel ash and sugarcane bagasse ash), their unavailability in the required form, heterogeneous nature and insufficient data make it difficult to generalise their performance. Therefore, a review of the existing information available will help to unravel areas of further research, any relationship between the influence of the processing method and materials characteristics on the limit of replacement and performance in cementitious systems and assist in their standardisation and sustainable utilisation. This, coupled with the reproducibility of results, will assist the processing and adoption of other agricultural wastes in cementitious systems.
引用
收藏
页码:65 / 71
页数:7
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