Compressive Strength Development of Dune Sand Reactive Powder Concrete (RPC) Under Different Curing Conditions
Reactive powder concrete (RPC) is a special type of concrete with remarkable properties, particularly compressive strength. Some of its main disadvantages include its high cement and SF content, fine quartz with a preferred size of 150 µm - 600 µm, and low water-tobinder ratio. These characteristi...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | en |
| Published: |
IOP Publishing
2022
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/39219/1/Compressive%20Strength%20Development%20of%20Dune%20Sand.pdf http://ir.unimas.my/id/eprint/39219/ https://iopscience.iop.org/article/10.1088/1755-1315/1026/1/012017 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Reactive powder concrete (RPC) is a special type of concrete with remarkable
properties, particularly compressive strength. Some of its main disadvantages include its high
cement and SF content, fine quartz with a preferred size of 150 µm - 600 µm, and low water-tobinder ratio. These characteristics increase the cost of RPC production and affect sustainable
development. Because of this, researchers have resorted to exploring substitutes to cement and
quartz to produce an eco-friendlier type of RPC. Accordingly, this research aims to study the
compressive strength development of RPC prepared with dune sand and supplementary
cementitious materials (SCM). Three main factors were investigated including 1) replacing
cement with 30% ground granulated blast furnace slag (GGBS), 2) using ternary blends of GGBS
and fly ash (FA) in RPC, and 3) applying 100ᵒC hot air curing (HAC) to RPC. Overall, the results
showed that the compressive strength of HAC and water cured specimens exceeded 120 MPa
after 12 hours and 28 days, respectively. Moreover, the compressive strength development of the
mixes incorporating SCM was slower than that of the control mix incorporating cement only
under HAC conditions. |
|---|