An Investigation of Usability of Brown Coal Fly Ash for Building Materials

Abstract

The Victoria State of Australia has the second largest reserves of brown coal on earth, representing approximately 20% of the worlds reserves, and at current use, could supply Victoria with its energy for over 500 years. Its combustion, annually, yields up to 1.3 million tonnes of fly ash, which is largely use for land-fills. Disposal of fly ash in open dumps cause massive environmental problems such as ground water contamination that may create various health problems. This study focuses on the usability of brown coal fly ash to develop a sustainable building material. A series of laboratory investigations was conducted using brown coal fly ash combined with cement and aggregate to prepare cold pressed samples aiming to test their properties. Initial results indicate that compressive strength satisfies minimum standard compressive strength required for bricks or mortar.

The effect of particle size of fly ash (FA) on the interfacial interaction and performance of PVC/FA composites

“…, shows that fly ash incorporation improves the elastic modulus below glass transition temperature, T g , which is an indication of the stiffness improvement. This observation is in accordance with the expectations of the common behavior of composites with rigid spherical particle fillers .…”

Concrete Blocks Reinforced with Arundo donax Natural Fibers with Different Aspect Ratios for Application in Bioarchitecture

“…Compared to Portland cement, it has a slower hardening process, thus improving workability and durability [87]. Today, industrial cement manufacturers are increasingly using materials such as pozzolan, fly ash, and volcanic ash, to replace part of Portland cement, in order to reduce CO 2 emissions and the relative cost, and to improve the resistance to chemical attack by sulphates and sea water.…”

Pengaruh Temperatur Pada Sifat Aspal Buton Granular Lapis

“…Secara umum fly ash mengandung SiO 2 dan CaO dalam kadar cukup besar. Fly ash kelas C (ASTM C618) memiliki kandungan SiO 2 , Al 2 O 3 , dan Fe 2 O 3 sekitar 50%, dan yang kelas F mencapai 70% [4].…”