Under certain environmental conditions, PSA may cause notable surface damage of concrete partially embedded in salt-rich soils. The process is similar to salt weathering of natural rocks. The current study investigated the effect of refining the microstructure of concrete by nano-silica additions on ...
Salt crystallization cannot occur on the paste surface in the ITZ, but it was found on the aggregate surface after damage initiation due to chemical sulfate attack. On the other hand, salt crystallization could occur in the carbonated concrete. There was no trace of salt crystallization in the ...
salt can mak e t he co rro s ive damage t o t he concreter mor e serio us ly. K ey words :concret e;s alt cor rosio n;d ry- w et cycle 万方数据相关精品文档 更多 混凝土在硫酸盐侵蚀和干湿循环共同作用下耐久性研究 混凝土耐久性 Durability-of-Concrete 碳化—硫酸盐侵蚀—干湿循环...
According to the measured data, the ice-formation pressure in concrete is calculated, and the result quantitatively proves that the ice-formation pressure generated by 2–6% NaCl solution causes maximal concrete damage. 展开 关键词: Concrete Salt-frost scaling Ice-formation pressure Volume expansion ...
The results reveal that concretes containing pre-wetted LWFA are more sensitive to salt scaling damage because of the higher degree of saturation of concrete and low strength of LWFA. The hydraulic and crystallisation pressures generated in the pores of LWFA might be the major contributor for ...
is a type of concrete that contains calcium and other alkali sulfates. Environmental forces can generate salt damage in buildings through atmospheric pollutants or groundwater. Using de-icing spray on a building during the winter may cause salt damage to the structure down the road. Buildings that...
PURPOSE: To prevent salty damage by constituting an internal electrode of a steel rod in the inside of concrete containing salt, arranging the material containing the specified hydraulic substance between the internal electrode and an external electrode arranged on the surface of concrete and allowing ...
to the interactions between concrete and deicing salts, with a specific focus on the formation of calcium oxychloride (which forms with CaCl2 and MgCl2) considering the extensive use of CaCl2 and MgCl2 in practice [69,72] and the severe damage they cause to concrete [12–15,27–32,64,69]...
the surface damage layer thickness of concrete structure was detected,and a new evaluation index,i.e.the salt freezing damaged degree was put forward.Minimum cover depth of concrete structure exposed to salt freezing condition was discussed,and some regulations required by Code for Design of High...
美 英 un.盐害 例句