Effect of cassava starch on shrinkage characteristics of concrete†. Issue 4 (7th June 2019)

• Record Type: Journal Article
• Authors: Akindahunsi, Akindehinde Ayotunde; Schmidt, Wolfram
• Is Part Of: African journal of science, technology, innovation and development. Volume 11:Issue 4(2019)
• Page Start: 441
• Page End: 447
• Publication Date: 2019-06-07
• Subjects: cassava starch -- concrete mix -- admixture -- compressive strength -- shrinkage strains; Technological innovations -- Economic aspects -- Developing countries -- Periodicals; Industrial productivity -- Effect of technological innovations on -- Africa -- Periodicals; Economic development -- Africa -- Periodicals; Social planning -- Africa -- Periodicals; Research, Industrial -- Developing countries -- Periodicals; Electronic journals; 338.9270916
• DOI: 10.1080/20421338.2017.1380580
• Languages: English
• ISSNs: 2042-1338

Abstract

Abstract : The use of starch and its derivatives in concrete as an admixture to modify relevant properties of concrete has been on the increase in recent times. It is known to modify the rheology, affect the hydration kinetics of cement, and influence initial and final setting times of cement. This paper examines the effect of cassava starch on shrinkage properties of concrete. Concretes with and without starch additions, were investigated. Various percentages (0, 0.5, 1.0, 1.5 and 2.0%) of starch by weight of cement were added to concrete mixes prepared in the laboratory. Shrinkage tests were conducted for a duration of up to one year. The results show that concretes with starch additions exhibit lower shrinkage, which is an indication that the addition of starch as an admixture in concrete improves the ability of the concrete to reduce shrinkage problems.