Fresh and hardened properties of ultra-high performance concrete incorporating coal bottom ash and slag powder
By S. Pyo, Hyeong-Ki Kim. 2017
170 citations recorded by the source corpus.
Abstract This experimental research addresses the physical properties of eco-friendly Ultra High Performance Concrete (UHPC) incorporating industrial by-products including coal bottom ash, fly ash and two types of slag powder. Slump flow, compressive strength development, porosity, setting time, autogenous shrinkage and thermogravimetric analysis of UHPC are characterized. The experimental results indicate that coal bottom ash and fly ash are promising industrial by-products by effectively replacing silica powder in UHPC without significant losses in workability and strength development. It is revealed that normal-sized and finer-sized ground granulated blast furnace slag can be effectively used without additional activator to partially substitute cement and silica fume, respectively, which results in enhanced workability and comparable compressive strength, albeit relatively slow strength development. Furthermore, it is found that the adoption of various forms of industrial by-products in UHPC does not play a significant role in affecting autogenous shrinkage, porosity and capillary water absorption of UHPC.
Subfields: Civil and Structural Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/615c822727451f50ecf2d5bea90294c3cbc4325f
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Civil and Structural Engineering
In Materials Chemistry
Citations in the corpus
- An overview of microstructural and material properties of ultra-high-performance concrete (2019, background): “CBA can provide additional compressive strength at 28 days due to its pozzolanic reaction and its highly amorphous structure [132].”