Utilization of limestone mineral wastes for developing self-compacting micro concrete

Venkadesh, M and Madhira, Sai K and Vasumathi, N and Hemalatha, T and Vijaya Kumar, T V Utilization of limestone mineral wastes for developing self-compacting micro concrete. In: International Chemical Engineering Conference 2021 , September 17 to 19, 2021, NIT Jalandhar. (Submitted)

[img]PDF - Submitted Version
Restricted to NML users only. Others may use ->



This study aims at investigating the feasibility of replacing cement and fine aggregate by limestone mineral wastes in developing Self Compacting Micro Concrete (SCMC). SCMC is highly flowable and can be used in places where there is no access to vibrators for compaction. Hence, these types of micro concretes are used mainly for repair purposes. The novelty of the work is that fines and coarse form of limestone mineral wastes generated during the beneficiation of a low-grade limestone ore has been studied for its utility as cement and fine aggregate substitute respectively in the preparation of SCMC. The main requirement for repair concrete such as flowability has been studied along with other mechanical properties. Flowability of mixes were assessed by mini slump test and V-funnel test. Mechanical properties namely compressive strength, flexural strength and split tensile strength tests were also studied to evaluate the performance efficacy. It was found that with 100% coarse limestone waste of less than 1mm in size as fine aggregate, it is possible to achieve about 25 MPa and 45 MPa compressive strength at 3 and 28 days respectively. As high flowability and early age strength are of significant parameters for the development of micro concrete, the mix made of 100% limestone wastes as fine aggregate is found to be a successful mix for sustainable development of micro concrete.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Waste utilization; Self-Compacting Micro Concrete; limestone wastes; mineral wastes; fly ash.
Divisions:NML Chennai > Mineral Processing
ID Code:8992
Deposited By:Ms. Ajita Kumari
Deposited On:06 Jul 2022 15:45
Last Modified:06 Jul 2022 15:47

Repository Staff Only: item control page