Development of Volcanic Ash Concrete: Strength, Durability, and Microstructural Investigations

Abstract

This report investigates the possibility of using volcanic ash as a cement replacement material in concrete production. Comprehensive tests on the durability of volcanic concrete mixtures and the performance of fresh and hardened concrete properties were conducted. The concrete mixtures were assessed by slump, air content, and compressive strength. The durability characteristics studied were: rapid chloride permeability, drying shrinkage, water permeability, mercury intrusion porosimetry and differential scanning calorimetry tests. The development of acceptable strength and durable volcanic ash concrete that is inexpensive and environmentally friendly would be helpful for the rehabilitation of volcanic disaster areas and sustainable development.