Performance of surface modification on bio-based aggregate for high strength lightweight concrete

Performance of surface modification on bio-based aggregate for high strength lightweight concrete

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The utilization of wastes in concrete as bio-based aggregate can alleviate disposal issues as well as preserve precious natural resources.This research highlights the wet grout binder derived from different water-cement ratios (0.65, 0.85, 1.

05, and 1.25) in modifying the surface of lightweight bio-based coarse aggregate (LWBCA).In this research, the strength properties of lightweight aggregate concrete (LWAC) mixed with modified LWBCA Left Quickly Key were evaluated.The outcomes showed that through the replacement of non-treated bio-based aggregate with that of pre-treated grout coating bio-based aggregate, the density of the samples slightly increased.

The results indicated that the slump value of the treated LWBCA showed a significant enhancement by almost 45% at 10 min for treated dura oil palm shell at 0.65 water-cement ratios (TDOPS/0.65), as compared to the non-treated bio-based aggregate.In addition, the strength of the TDOPS/0.

65 mix shows more appropriate quality enhancement of pre-treated LWBCA when compared to non-treated, and correspondingly the strength properties of the concrete, particularly the significant increment of compressive strength and elastic modulus were recorded at 21% and 31%, respectively.Based on the water absorption test assessment, the LWBCA concrete indicated that good concrete was obtained for all the mixes.Therefore, a new technique of surface modification on bio-based aggregate has shown to be Vanilla Bean a highly suggested method, which performs as one of the most promising solutions to enhance the interfacial bonding strength.Thus, treatment improves the bio-aggregates to a level without scarifying the quality of the LWAC and substantially mitigating the environmental impact in concrete.