Publication: The Importance of Superplastizer Dosage in the Mix Design of Lightweight Aggregate Concrete Reinforced with Plypropylene Fiber
Date
2016
Authors
Shafigh P.
Yahaghi J.
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciences
Abstract
This paper reports the results of a study conducted to investigate the effect of superplasticizer (SP) dosage on the slump, density, compressive strength and splitting tensile strength under different curing conditions of a lightweight aggregate concrete reinforced with polypropylene (PP) fiber. The lightweight aggregate used in this study was oil palm shell, which is an agricultural solid waste, originating from the palm oil industry. The results indicated that an increase in superplasticizer increased the workability, however, all the mechanical properties declined significantly. The reduction in the 28-day compressive and splitting tensile strengths was about 14. This study showed that although additional SP can improve the workability of the concrete, it may have a negative effect on the other properties of concrete. Therefore, the SP dosage in concrete mixtures containing PP fiber should be limited to a certain amount. � 2016 The Authors.
Description
Aggregates; Compressive strength; Concrete mixtures; Concretes; Mechanical properties; Palm oil; Polypropylenes; Reinforced plastics; Reinforcement; Tensile strength; Compressive and splitting tensile strengths; Curing condition; Light weight aggregate; Light-weight aggregate concrete; Oil industries; Other properties; Splitting tensile strength; Superplasticizers; Light weight concrete