Impact of Use Septic Tank Sludge for the application as Pozzolanic Material in high performance concrete

Abstract

Abstract The disposal of septic tank sludge (SS) delivered from wastewater treatment plants is progressively getting to be a risk to the environment for includes Organic compounds which are scary to the public health and environment; over-volumes are every day created and deficiency of relevant landfill sites for wastes. This study aims to explore the impact of septic tank sludge as partial substitutions of ordinary Portland cement (PC) within the production of high-performance concrete (HPCs). The water/binder (W/B) ratio of all kinds of blends is fixed at 0.36 with total binder content of 492 kg/m3. The concrete mixtures, in portion, are replaced with 0%, 5%, 10%, 15% and 20% of SS, individually. The impact of SS used to be analyzed through physical and chemical tests. The workability test of HPC was once decided to utilize the slump flow, Meanwhile compressive strength and tensile strength splitting experiments were conducted to investigate the impact of septic tank sludge on the hardened properties of HPC. The results demonstrated that SS may be a responsive pozzolanic material (PM) ; consequently which could be used as PM in concrete mixes. The concrete blend contains 5% cement substitution with SS illustrated to improve hardened properties of concrete at the all-age of specimens evaluated by comparing to concrete control. Sensibly, the substitution of 20 % septic tank sludge is desirable for creating high-performance concrete.