Mohammed K. H. Radwan

• MEngSc
• PhD at The University of Western Australia

Ground granulated blast furnace slag (GGBFS) is a by-product obtained from the iron making process and has suitable properties to be utilized as high volume cement replacement to produce sustainable concrete. This study focuses on investigating the influence of GGBFS replacement level (0%–70%) and water/binder ratio (0.45 and 0.65) on the performan...

It is becoming more common to replace cement partially with supplementary cementitious materials, which in turn influence the mechanical performance and environment impact of the resulting mortar or concrete. A study was undertaken to evaluate the eco-mechanical performance of both binary and ternary blended cement mortars. For this purpose, fly as...

The replacement of conventional ordinary Portland cement with industrial by-products to produce cellular lightweight foamed concrete can have economic and environmental benefits. The performance of using a palm oil industrial by-product, namely, palm oil fuel ash (POFA), as a cement replacement material was investigated with proportions of 10, 20,...

Lightweight cement composite (LCC) has gained more interest and is increasingly explored by researchers due to its many advantageous properties. Silica aerogel (SA), a synthetic ultralight material, has a nano-porous structure, making it a potential option to be incorporated for LCC. Thus, this research intends to assess the influence of micro-size...

Due to the significant environmental damages caused by cement production, the use of blended cement has gained greater attention. This paper explores the novel use of solid waste from the sugar industry namely press mud (PM) and waste glass powder (GP) as cement replacement in ternary blended cement. The ternary blended cement consists of 20% GP an...

The development of alternative binders as a replacement for Portland cement is one approach to address the growing demand for cement in the building sector. Alkali-activated materials (AAMs) are gaining popularity as a viable and environmentally friendly alternative to Portland cement-based products. However, the energy-intensive manufacturing proc...

This research incorporates sustainable materials such as ground granulated blast furnace slag (GGBS) and recycled waste glass (RWG) as cement and fine aggregate replacement respectively to produce green dry mix mortar paving blocks. The GGBS and RWG contents in the mortar paving block were optimised using the response surface methodology (RSM), con...

The main obstacle of using geopolymer as a construction repair material is its slow strength development rate, which is the most significant attribute of an early-age opening for traffic and striking-off formwork. Geopolymer technology has recently attracted huge interest as an alternative to traditional cementitious materials with low environmenta...

Silica aerogel (SA) has recently gained attention as an alternative to lightweight aggregate in lightweight cementitious composite (LCC). However, it is challenging to ensure homogenous mix of hydrophobicity SA and aqueous cementitious composite. This study investigates a novel chemical treatment of micro-sized SA using methanol solution for incorp...

The global consumption of natural aggregates and cement is rising at an alarming rate due to the vast growing in construction industry. At the same time, the steel industries are generating large amounts of by-products in the form of electric arc furnace (EAF) slag, ladle furnace (LF) slag and ground granulated blast furnace slag (GGBS). These slag...

Coal fly ash and granulated ground blast furnace slag (GGBS) are more widely used as supplementary cementitious materials in cement production. This study investigates the influence of high-volume ordinary Portland cement (OPC) replacement with fly ash and/or GGBS on the flow, compressive strength and environmental impacts of the resulting binary a...

This paper aims to study the influence of basalt fiber (BF) and polypropylene fiber (PPF) in crumb rubber (CR) mortar made of two different types of cement, including ordinary Portland cement (OPC) and calcium aluminate cement (CAC). CR was used to partially (5%, 10%, 15%, and 20% by volume) replace the fine aggregate in OPC and CAC mortars. BF and...

The use of cement as a soil stabilization agent is one of the common solutions to enhancing the engineering properties of soil. However, the impact and cost of using cement have raised environmental concerns, generating much interest in the search for alternative materials to reduce the use of cement as a stabilizing agent in soil treatment. This s...

Silica aerogel is a nano-porous material with remarkable insulation properties. Because of this, it can be an ideal alternative to traditional thermal insulating building materials which can promote energy efficiency in buildings. Consequently, it is gaining more interest in the construction industry and now many researchers have carried out invest...