Durability design and performance of self consolidating lightweight concrete

Gesoglu, E, Güneyisi and E.Özbay: Properties of self-compacting concretes made with binary, ternary, and quaternary cementitious blends of fly ash, blast furnace slag, and silica fume, Construction and Building Materials, Vol. Abstract: The reutilization of waste concrete and fly ash produced by power plant is one way to develop green concrete.

The test results show that under the condition of steam-cured and standard-cured, incorporating 20-30% of the ground granulated blast furnace slag or 15-20% of fly ash decreased the alkalinity and the carbonation resistance of the concrete; with the increase of the proportion of the mineral admixture in concrete, carbonation resistance of HPC was decreased; incorporating 20-30% of the ground granulated blast furnace slag or 15-20% of fly ash improved the chloride permeability of steam-cured concrete, and the influence of ground granulated blast furnace slag is better than that of the fly ash.

Abstract: This paper studies the influence of different mineral admixtures(fly ash and ground granulated blast furnace slag)on the carbonation resistance and chloride permeability of steam-cured HPC.

of Frontiers in Structural and Civil Engineering, Springer, (2017). Different varieties of mineral admixture used in the concretes can produce a certain degree of potentiation.

Test results showed that replacing 20% of cement with fly ash produced the highest compressive strength of 67.96 MPa among all fly ash-cement binary mixes. Rens: Time Effect of Alkali-Aggregate Reaction on Performance of Concrete, Journal of Materials in Civil Engineering, ASCE, Vol. DOI: https://doi.org/10.1061/(asce)0899-1561(2001)13:2(143) O. Based on the experimental results, the contents of 50% fly ash, 10% silica fume and 2% re-dispersible latex powder were chosen to modify MPC and the water resistance of the modified MPC was studied.

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To resolve it, this paper mainly studied the influence of mineral admixtures on the compressive strength, the tensile-splitting strength and the flexural strength of the steam-cured concrete. Najm: Splitting tensile strength of sustainable self-consolidating concrete, Procedia Engineering - Elsevier, Vol. DOI: https://doi.org/10.1016/j.proeng.20 Abstract: In precast concrete elements manufacturing, steam-cured concrete incorprating 30% mineral admixtures encountered the problem of too low demoulding compressive strength.Abstract: Based on the mechanism of concrete carbonation, the effects of content of fly ash in the binder, the water to binder ratios, compound activator, and long-term curing on the carbonation depth of fly ash high-performance concrete are investigated.Supplementary cementitious materials such as fly ash, silica fume and ground granulated blast furnace slag (GGBS) have been used widely to partially replace cement in producing self-consolidating concrete (SCC). Durability performance index such as sulfate attack, drying shrinkage and wear resistance is acquired base on the corresponding test.The production of cement is associated with emission of significant amounts of CO and increases the human footprint on the environment. Al Hawat: Using neural networks to predict chloride penetration of sustainable self-consolidating concrete, Civil-Comp Press, (2015). The result shows that the fluidity of fresh concrete is improved by the addition of fly ash.

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