Heat of hydration, water sorption and microstructural characteristics of paste and mortar mixtures produced with powder waste glass

Abstract

This paper investigates the effects of powder waste glass (PWG) at 10%, 15%, and 20 wt.% replacement of cement on the flow characteristic, setting time, compressive strength, water sorption, rate of the heat of hydration, cumulative heat of hydration; alkali-silica reaction (ASR), and microstructure characteristics of the resulting paste and mortar mixtures. A total of eight cementitious mixtures including two control mixtures have been investigated in this experimental program to evaluate the effect of PWG on the fresh and hardened state characteristics of paste and mortar mixtures. Test results show that the incorporation of PWG in the cementitious mixtures results in significant enhancement of their microstructure, increase in compressive strength, improvement in moisture barrier characteristics, and considerable reduction in the rate of the heat of hydration and cumulative heat of hydration. Up to 20 wt.% replacement of cement with fine PWG is seen to be innocuous from the standpoint of ASR. Furthermore, the use of PWG in paste results in delaying the initial and final setting times and increases the flow characteristic of the mortar mixture.

Keywords:

• Alkali silica reaction
• compressive strength
• heat of hydration
• powder waste glass
• water sorption

Reviewing Editor:

• Sanjay Kumar Shukla
• Edith Cowan University
• Australia

Subjects:

• Materials Science
• Clean Tech
• Civil, Environmental and Geotechnical Engineering

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This research project was funded by the American University of Ras Al Khaimah (AURAK) through Seed Grant No. ENGR/003/19. Support provided by AURAK Office of Research and Community Service is gratefully acknowledged.

Notes on contributors

Roz-Ud-Din Nassar

Roz-Ud-Din Nassar is an Associate Professor in the Department of Civil and Infrastructure Engineering at American University of Ras Al Khaimah, United Arab Emirates. His research interests include the study of strength and durability characteristics of sustainable cementitious materials and long-term field testing of various types of concrete.

Danish Saeed

Danish Saeed is a Lecturer of Civil Engineering at Khwaja Fareed UEIT Rahim Yar Khan, Pakistan. Study of the use of recycled materials in concrete is his research area.

Tewodros Ghebrab

Tewodros Ghebrab is an Assistant Professor in the Department of Civil, Environmental, and Construction Engineering at Texas Tech University, Lubbock, USA. His research interest includes the study of performance of cement-based materials under adverse environments and the effect of mineral/chemical admixtures on the structure-property relationships of cement-based materials.

Shah Room

Shah Room is a Lecturer in the Department of Civil Engineering and Technology, University of Technology Nowshera, Pakistan. His research interest comprises of the study of environmentally-friendly cementitious mixtures under exposure to aggressive environment.

Ahmed Deifalla

Ahmed Deifalla is a Professor n the Department of Structural Engineering and Construction Management, Future University in Egypt, New Cairo City 11835, Egypt. His research areas comprise of the study of lightweight concrete, high strength concrete, fiber reinforced concrete, and the strengthening of reinforced concrete elements subjected to variety of loadings.

Kadhim Al Amara

Kadhim Al Amara - Assistant Professor Department Mechanical and Industrial Engineering, Liwa College of Technology, Abu Dhabi, United Arab Emirates. His research interests include the study of thermal spray coating and surface technologies, additive manufacturing, and sustainable energy.