Improving Properties of Lightweight LECA Concrete by Partial Replacement with Gravel.

Abd El-Reheem, A. H.; Kamal, M. M.

doi:10.21608/bfemu.2021.172228

Improving Properties of Lightweight LECA Concrete by Partial Replacement with Gravel.

Document Type : Research Studies

Authors

A. H. Abd El-Reheem ¹
M. M. Kamal ²

¹ Associate Professor of Civil Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

² Associate Professor of Reinforced Concrete Department, Building Research Centre Cairo, Egypt.

10.21608/bfemu.2021.172228

Abstract

This research was conducted to study the mechanical and the physical properties of concrete mixes made of light weight expanded clay aggregates with trade name (LECA). One hundered and five concrete mixes were investigated. The aggregate used was a mixture of "LECA" and gravel with different proportions. Concrete mixes with "LECA" only or gravel only were tested for comparison. The main properties of the concrete mixes tested in this investigation were the unit weight, absorption percentage, compressive strength, flexure strength and modulus of elasticity. Bond strength between concrete and steel was also investigated. It was found that an adquate strength with reasonable unit weight and absorption percentage of concrete could be achieved by partial replacement or gravel in the concrete mix by "LECA".

Main Subjects