Properties and Mechanism of Pervious Concrete Cured by CO2 Flow Method
ZHOU Wenjia
ZHU Liangliang
LIU Lixi
CHEN Xi
Abstract：In order to better utilize the porous characteristics of pervious concrete and find a more suitable CO2 curing method for it,a novel flow method for curing pervious concrete was proposed and a corresponding curing apparatus was designed.Experimental approaches were used to explore the curing time of the flow method,and a comparison was made with commonly used static curing methods including pressure curing,which shows superior performance,and atmospheric curing under similar conditions,with respect to CO2 uptake,compressive strength,and microstructure.The results show that the flow method can promote carbonation by removing excess moisture,especially from the interior of the concrete,through airflow,reducing the need for pre-treatment steps and ensuring a more uniform distribution of moisture.This effectively eliminates the uneven carbonation inside and outside of the specimens,with the result that it significantly improves the compressive strength of the concrete.
Keywords：pervious concreteCO2 flow curingcompressive strengthCO2 uptake
Publication Date：2025-02-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 127-134 )