Reuse of wash water in production of fresh concrete through the use of chemical stabilizing systems

Title: Reuse of wash water in production of fresh concrete through the use of chemical stabilizing systems
Author(s): A. R. Chini, L. M. Muszynski, G. B. Wilder
Paper category : conference
Book title: International Symposium on Intergrated Life-Cycle Design of Materials and Structures
Editor(s): A. Sarja
Print-ISBN: 951-758-408-3
e-ISBN: 235158029X
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 142 - 148
Total Pages: 7
Nb references: 4
Language: English

Abstract: Properties of stabilized concrete and their control mixtures were evaluated using a number of fresh and hardened concrete tests. Mixtures were evaluated in the laboratory under conditions that simulated overnight stabilization of their wash water to determine how the fresh and hardened properties changed, Compared to control concrete samples, the compressive and flexural strengths, modulus of elasticity, and drying shrinkage properties of the stabilized concrete are acceptable. The significant difference between stabilized mixtures and their control mixtures was in set times. Set times for the stabilized mixtures were significantly greater than those of their control mixtures when stabilizer admixture was combined with other retardant admixtures. Results of this study demonstrate that dosages and combinations of water reducers and/or retardants with stabilizer agents can have a pronounced effect on the properties of the concrete produced.

Online publication: 2000-04-30
Classification: DESIGN FOR RECYCLING AND REUSE
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/235158029X.026