Abstract
Disposing electronic plastic waste into construction materials is an eco-friendly and energy efficient solution to protect the environment. This work is aimed at enhancing the strength of self-compacting concrete (SCC) replacing sand with electronic waste, namely, High Impact polystyrene (HIPS) plastic granules and cementitious material with fly ash. SCC is designed with the optimized binder content of 497 kg/m3 using Fly Ash (30% by weight of cement) and 0.36 as water-to-binder ratio for all the mixtures. High Impact Polystyrene granules are replaced with sand up to 40% (by volume) at a regular interval of 10%. Rheological behavior is observed with the slump flow test for slump diameter, V-funnel test for flow time, and the L-box test for heights ratio, respectively. Strength behavior is studied by performing split tensile strength, and compressive strength tests after a period of 7, 28, and 90 days, respectively. Both fly ash and HIPS aggregate in addition to SCC up to 30% exhibits a minimal strength reduction with a promising performance in workability. Hence incorporation of both fly ash and HIPS granules up to 30% in SCC is a viable eco-friendly technique, with the beneficial economic impact on the construction industry.
Highlights
Self-compacting concrete (SCC) is a widely spread feasible technique mainly characterized by its high fluidity to long distances and compacting on self-weight without any vibration
self-compacting concrete (SCC) performed better up to 30% Building System Technology (BST) replacement at elevated temperatures in the tests of modulus of elasticity, compression and tension
The following are the conclusions drawn from the Terephthalate (PET) replaced for fine aggregate, the empirical relation is suggested as ft = 0.23fc 0.67 current investigation: An experimental carried out torelation determine the optimal percentage combination at the curing period ofinvestigation days [41]. isThe empirical obtained in this work is almost similar to of fly ash and
Summary
Self-compacting concrete (SCC) is a widely spread feasible technique mainly characterized by its high fluidity to long distances and compacting on self-weight without any vibration. It is accepted across the world due to the excellent deformability and durability [1,2]. The strength of SCC is controlled by the composition of the cementitious material and water–cementitious ratio [10,11]. Water-cementitious content affects the strength than the total paste volume in SCC [12]. Mineral additive fly ash enhances SCC properties at low water to binder ratio mitigating the heat of hydration due to the high cement paste content [8,13]. Fly ash mineral composition is identical to cement and its pozzolanic reaction eliminates the growth of calcium hydroxide and transforms the calcium hydroxide into
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