Related Experiment Video
Updated: Apr 27, 2026

Assessing Disaster Resilience of Concrete with Titanium Dioxide Nanoparticles
Published on: November 14, 2025
Experimental study on durability improvement of fly ash concrete with durability improving admixture
1School of Architectural Engineering, Qingdao Agricultural University, Qingdao 266109, China.
Abstract:
In order to improve the durability of fly ash concrete, a series of experimental studies are carried out, where durability improving admixture is used to reduce drying shrinkage and improve freezing-thawing resistance. The effects of durability improving admixture, air content, water-binder ratio, and fly ash replacement ratio on the performance of fly ash concrete are discussed in this paper. The results show that by using durability improving admixture in nonair-entraining fly ash concrete, the compressive strength of fly ash concrete can be improved by 10%-20%, and the drying shrinkage is reduced by 60%. Carbonation resistance of concrete is roughly proportional to water-cement ratio regardless of water-binder ratio and fly ash replacement ratio. For the specimens cured in air for 2 weeks, the freezing-thawing resistance is improved. In addition, by making use of durability improving admixture, it is easier to control the air content and make fly ash concrete into nonair-entraining one. The quality of fly ash concrete is thereby optimized.
Related Concept Videos
Effects of Air-entrainment in Concrete
Pozzolans
Fly ash is...
Additives and Fillers in Concrete
The...
Design Example: Managing Concrete Workability
Frost Resistant Concrete
Introducing microscopic air bubbles into the concrete mix through air entrainment creates small voids that accommodate ice expansion, thereby reducing internal pressures and preventing cracking. The optimal amount of...
Abrasion Resistance of Concrete
One such test is the revolving disc test, where three plates...

