TY - JOUR
T1 - Development of sustainable alkali-activated bricks using industrial wastes
AU - Gavali, Hindavi R.
AU - Bras, Ana
AU - Faria, Paulina
AU - Ralegaonkar, Rahul V.
PY - 2019/8/10
Y1 - 2019/8/10
N2 -
Brick is one of the majorly used building materials for masonry construction. Unlocking the potential to deliver significant impact against India's current housing and agro-industrial waste challenges is crucial. This can be met by developing sustainable products using industrial wastes. Alkali-activated products are claimed to be sustainable and cost effective, giving rise to Portland cement free products. The paper presents a state-of-the-art review on the development of sustainable bricks by alkali-activation of industrial wastes. Physical and chemical characterisation of industrial wastes are discussed in order to check its feasibility for the development of alkali-activated bricks. The influence of parameters on physico-mechanical and durability related properties are evaluated. Previous studies show that bricks with the appropriate values of molarity, alkali modulus, liquid-binder ratio and water glass-NaOH ratio (5–15 M, 0.15–0.9, 0.2–0.48 and 0.5–2.5 respectively)achieves a compressive strength of 5–60 N/mm
2
. Though considerable research has been carried out, application of industrial wastes in the alkali-activated bricks manufacturing are still limited and some recommendations are suggested. Geopolymeric bricks seems to be the most advantageous as they can incorporate high content of wastes. It signifies the potential use of waste materials to form alkali-activated brick as an alternate sustainable masonry option.
AB -
Brick is one of the majorly used building materials for masonry construction. Unlocking the potential to deliver significant impact against India's current housing and agro-industrial waste challenges is crucial. This can be met by developing sustainable products using industrial wastes. Alkali-activated products are claimed to be sustainable and cost effective, giving rise to Portland cement free products. The paper presents a state-of-the-art review on the development of sustainable bricks by alkali-activation of industrial wastes. Physical and chemical characterisation of industrial wastes are discussed in order to check its feasibility for the development of alkali-activated bricks. The influence of parameters on physico-mechanical and durability related properties are evaluated. Previous studies show that bricks with the appropriate values of molarity, alkali modulus, liquid-binder ratio and water glass-NaOH ratio (5–15 M, 0.15–0.9, 0.2–0.48 and 0.5–2.5 respectively)achieves a compressive strength of 5–60 N/mm
2
. Though considerable research has been carried out, application of industrial wastes in the alkali-activated bricks manufacturing are still limited and some recommendations are suggested. Geopolymeric bricks seems to be the most advantageous as they can incorporate high content of wastes. It signifies the potential use of waste materials to form alkali-activated brick as an alternate sustainable masonry option.
KW - Eco-efficiency
KW - Geopolymerization
KW - Industrial by-product
KW - Masonry unit
KW - Physico-mechanical characteristics
KW - Waste
UR - http://www.scopus.com/inward/record.url?scp=85064639192&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/abs/pii/S095006181931044X
U2 - 10.1016/j.conbuildmat.2019.04.152
DO - 10.1016/j.conbuildmat.2019.04.152
M3 - Review article
AN - SCOPUS:85064639192
SN - 0950-0618
VL - 215
SP - 180
EP - 191
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -