Optimization and performance of air entrained self consolidating concrete

Higher stress levels always caused earlier and more occurrences of brittle fracture.

A prediction model of the damage degree of SCC was proposed by incorporating the test results achieved in the paper.

Salt freeze-thaw had small influences on the surface erosion and relative dynamic elastic modulus of the SCC used in this study.

Under coupling effect of salt freeze-thaw and flexural load, different levels of flexural load were applied on the SCC specimens.

Each series of concrete included three different fresh mixtures.ABSTRACT: The effect of waste latex paints (WLPs) on fresh and hardened properties of cement-based materials is not well understood.In this project, WLPs were not randomly collected from waste collection sites; rather produced to ensure full traceability of composition, then stored in sealed or opened pail conditions to get expired.However, it increased the demand for high-range water reducer and air-entraining admixture.The overall test results indicate that the air-void stability in all fresh self-consolidating concretes was satisfactory.

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The modified point-count method was employed to determine the characteristics of the corresponding air-void system.

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