Abstract
In order to improve the strength of cement concrete pavement and reduce pavement cracking, the application effect of the hydration reaction enhancer Mixconverter in cement concrete pavement was studied by testing the compressive strength, bending strength, crack resistance and chloride ion permeability of concrete indoors. The test results show that the addition of Mixconverter to concrete can significantly improve the compressive and flexural strength of concrete, effectively prevent the expansion of plastic shrinkage and cracking of concrete, and significantly reduce the chloride ion diffusion coefficient. Finally, the test road pavement further proves the improvement effect of Mixconverter on concrete strength and cracking.
Highlights
Concrete mix designThe compressive strength and flexural strength tests were conducted in accordance with the specification [6]
Cement concrete pavement is a main form of high-grade highway and it is extensively utilized
According to the commonly used strength grades of highgrade cement concrete pavements, the concrete mix was designed and the benchmark concrete test piece M0 was formed based on C40 concrete
Summary
The compressive strength and flexural strength tests were conducted in accordance with the specification [6]. The contents of cement, sand and stone materials were adjusted The flexural strength has increased by 9.6% and 10.2% on the 7th day and 9.1% and 11.8% on the 28th day, thereby indicating that the addition of Mixconverter to the concrete can significantly enhance the strength both in the early stage and in the late stage and the more the content, the more obvious the increase in strength This is because Mixconverter participates in the hydration reaction during the concrete mixing process, which can promote the production of hydrated calcium silicate gel, so that a denser microstructure is formed inside the concrete, thereby improving the strength in the early stage. In the concrete curing process, Mixconverter can maximize the hydration degree of the concrete, further improve the compactness of the concrete, and significantly increase the strength in the later stage
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
