scholarly journals Mechanical behaviour and durability of high volume fly ash cementitious composites

2016 ◽  
Vol 10 (38) ◽  
pp. 305-318
Author(s):  
Usman Haider ◽  
Zdenek Bittnar ◽  
Lubomír Kopecky ◽  
Petr Bittnar ◽  
Jiri Nemecek ◽  
...  
Keyword(s):  
Fly Ash ◽  
Mechanical Behaviour ◽  
High Volume ◽  
Cementitious Composites ◽  
High Volume Fly Ash

Influence of Fly Ash on the Mechanical Properties of Engineered Cementitious Composites Cured at High Temperature

2010 ◽  
Vol 113-116 ◽  
pp. 1293-1296
Author(s):  
Yu Zhu ◽  
Ying Zi Yang ◽  
Hong Wei Deng ◽  
Yan Yao
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
High Volume ◽  
Bending Test ◽  
Cementitious Composites ◽  
Test Results ◽  
Four Point Bending ◽  
High Volume Fly Ash ◽  
Compressive Strength Test

In order to investigate the mechanical properties of cementitious composites (ECC) cured at 60°C, four-point bending test and compressive strength test are employed to analyze the effect of fly ash on the properties of ECC. The replacement ratio of cement with fly ash is 50%, 70% and 80%, respectively. The test results indicate that ECC with high volume fly ash still remain the characteristic of pseudo-strain hardening and the deflection of ECC increases remarkably by adding more fly ash. The observations of ECC indicate that the crack width is relatively smaller for higher volume fly ash ECC. Meanwhile, compressive strength of ECC specimens with 80% fly ash can reach to 70MPa. This is helpful to produce precast ECC with high volume of fly ash.

scholarly journals High-Volume Fly Ash-Based Cementitious Composites as Sustainable Materials: An Overview of Recent Advances

2021 ◽  
Vol 2021 ◽  
pp. 1-22
Author(s):  
Sen Du ◽  
Qingxin Zhao ◽  
Xianming Shi
Keyword(s):  
Fly Ash ◽  
High Volume ◽  
Cycle Performance ◽  
Cementitious Composites ◽  
Research Needs ◽  
Fresh Properties ◽  
High Volume Fly Ash ◽  
Sustainable Materials ◽  
Durability Performance ◽  
Lower Carbon

High-volume fly ash (HVFA) cementitious composites (paste, grout, mortar, and concrete) have been widely investigated as a class of sustainable materials due to their lower carbon footprint and often better life cycle performance than conventional Portland cement mixtures. Recent years have seen increased research in HVFA-based materials, and the potential of this type of mixtures in engineering applications has significantly improved. In this context, this work reviews the renewed knowledge of HVFA mixtures, focusing on the relevant papers published over the last decade. The effects of replacing cement with a HVFA binder on the fresh properties, mechanical properties, durability performance, and environmental impact of HVFA cementitious composites are explored. Measures that can compensate for the main drawbacks that limit the wider application of HVFA mixtures are discussed in detail. At last, we summarize the research needs and remaining challenges of HVFA cementitious composites.

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