Application of agro-waste for sustainable construction materials: A review

Characterisation and use of biomass fly ash in cement-based materials.

A review of waste products utilized as supplements to Portland cement in concrete

Supplementary cementitious materials origin from agricultural wastes - A review

Ultrafine grinding of sugar cane bagasse ash for application as pozzolanic admixture in concrete

The utilization of waste materials in concrete manufacture provides a satisfactory solution to some of the environmental concerns and problems associated with waste management. Agro wastes such as rice husk ash, wheat straw ash, hazel nutshell and sugarcane bagasse ash are used as pozzolanic materials for the development of blended cements. Few studies have been reported on the use of bagasse ash (BA) as partial cement replacement material in respect of cement mortars. In this study, the effects of BA content as partial replacement of cement on physical and mechanical properties of hardened concrete are reported. The properties of concrete investigated include compressive strength, splitting tensile strength, water absorption, permeability characteristics, chloride diffusion and resistance to chloride ion penetration. The test results indicate that BA is an effective mineral admixture, with 20% as optimal replacement ratio of cement.

Evaluation of bagasse ash as supplementary cementitious material

Rice husk ash blended cement: Assessment of optimal level of replacement for strength and permeability properties of concrete

Purpose – Utilization of industrial and agricultural waste products as cement replacement materials in concrete technology has been an interesting subject of research for economical, environmental, and technical reasons. Portland cement incorporating these cement replacement materials improves corrosion resistance of carbon steel. Sugar cane bagasse is considered as waste in sugar mills and dumped in open space or used as fuel for boilers. The main purpose of the study is to investigate corrosion performance of reinforcing carbon steel in bagasse ash (BA) blended cement concrete and compare it with control concrete.Design/methodology/approach – BA is prepared by burning boiler‐fired ash at a controlled temperature of 650°C for 1 h and cooled. The ash is then ground to a fineness of 46 μm as Pozzolanic material and blended in concrete in various cement replacement levels. The corrosion behaviour of carbon steel in BA blended concretes exposed to alternate dry‐wet cycles in 3.0 percent NaCl solution for 18 ...

Evaluation of bagasse ash as corrosion resisting admixture for carbon steel in concrete

In this paper, the effects of rice husk ash (RHA) and bagasse ash (8A) as cement replacement materials on thc chloride resisting properties. important to durability of concrete structures have been studied, RHA and BA have been used up to 30 % replacement by wight of cement with fixed water to binder ratio of 0.55, The properties of concrete investigated include water absorption, permeability, sorptivity, resistance to chloride ion penetration in terms of toal charge passed in coulombs and chloride diffusion coefficient. The compressivc strength of concrete containing RHA and BA were also supplemented. The specimens incorporating RHA or BA, when exposed to chloride solution exhibit significantly lower charge passed value and lesser chloride diffusion for all cement replacement levels (CRL). Overall results indicate that RHA (25-30% CRL) and BA (15-20%) blended concretes showed superior durability properties.

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K. Rajagopal

Papers

Evaluation of bagasse ash as supplementary cementitious material

Rice husk ash blended cement: Assessment of optimal level of replacement for strength and permeability properties of concrete

Evaluation of bagasse ash as corrosion resisting admixture for carbon steel in concrete

Chloride resisting concrete containing rice husk ash and bagasse ash