In this paper, mechanical properties of carbonated concrete were studied. Compressive strength, splitting tensile strength, elastic modulus, bond strength and hardness for carbonated concrete subjected to various carbonation conditions were evaluated. Experimental results indicated that all these mechanical ...
Using a phenolphthalein solution, the carbonated sections of all precisely cut specimens were discerned. Fig. 10b provides an overview of the average carbonation depth, showing that the carbonation depth of all specimens exceeded the embedding depth of the shrinkage gauge, which was set at 10 ...
There is a belief, within the fire research community, that high strength concrete is more susceptible to explosive spalling than normal strength concrete... F Ali - 《Fire & Materials》 被引量: 71发表: 2002年 Assessment of mechanical properties of concrete incorporating carbonated recycled concrete...
The surface adhesion mortar of recycled coarse aggregate (RCA) is the main factor leading to poor aggregate quality, and it also affects the internal structure and mechanical properties of recycled aggregate concrete (RAC). To improve the quality of RCA and mechanical properties of RAC, self-devel...
In terms of long-term performance, although the creep [20,21], fatigue [22], and permeability [23] properties of RLC are somewhat different from those of conventional concrete, they can still meet engineering requirements in most cases. Structural components cast with RLC generally exhibit ...
The use of recycled coarse aggregates (RCAs) in concrete often results in a decrease in mechanical properties due to the poor bonding performance between new and old interfaces. This study impregnated RCA with low-alkali sulfoaluminate (LASAC) and magnesium phosphate cement (MPC) to improve the ...
Mechanical, physical, durability, and microstructural properties of different concretes were assessed. The results show that substitution of OPC with CSA cement improves the mechanical properties of concrete. The addition of CSA cement results in a reduced shrinkage deformation, while it increases the ...
caused by the NaOH in the Bayer-process liquor. The carbonated samples weres dried in a laboratory oven to carry out analytical measurements (FTIR, SEM, XRD). The particle size distribution of the reacted samples was measured after reaction immediately in wet state by laser particle size ...
Overall, concrete has been one of the commonly examined materials after the earthquake and has a significant impact on the performance of the buildings. Hence, investigating the properties of concrete taken from collapsed buildings can provide useful information on understanding the reasons for poor ...
has created the need for materials with not only good mechanical properties and durability, but also new additional functions. That is the reason why many researches have been focused on the development of multifunctional materials, which combine both structural properties and other functional application...