透光混凝土的力学性能、耐久性能和光学性能试验研究

发布时间：2018-06-08 12:53

本文选题：透光混凝土 + 力学性能　；参考：《混凝土》2017年09期

【摘要】：透光混凝土是一种新型建筑材料。为满足建筑行业的需求,对透光混凝土制备工艺、性能进行深入透彻地研究已变得非常迫切。对透光混凝土的力学性能、耐久性能,以及其光学性能进行了研究,研究表明:透光混凝土的力学性能与掺入光纤的种类,光纤的掺量密切相关。不论掺入有机玻璃(PMMA)或者聚苯乙稀(PS)光纤,光纤的掺入明显提高体系的抗压强度,随着光纤掺量的增加,体系抗压强度先增加后减少。光纤的掺入可以明显提高体系的抗裂性能,且随着光纤掺量的增加脆性系数降低。对于同一龄期,同种光纤掺量条件下,PS组的试件脆性系数大于PMMA组的试件。光纤的掺入降低了透光混凝土的抗硫酸侵蚀性能和抗氯离子渗透性能,随着光纤掺量的增加,抗硫酸侵蚀性能和抗氯离子渗透性能降低。随着光纤掺量的增加,透光率明显增加。PS光纤的试件的透光率略低于PMMA试件,但相差不大。
[Abstract]:Transparent concrete is a new type of building material. In order to meet the needs of the construction industry, it has become very urgent to study the properties of transparent concrete. The mechanical properties, durability and optical properties of transparent concrete are studied. The results show that the mechanical properties of transparent concrete are closely related to the type of doped fiber and the content of optical fiber. The compressive strength of the system was obviously increased with the addition of PMMA (PMMA) or PS). With the increase of fiber content, the compressive strength of the system first increased and then decreased. The addition of fiber can improve the crack resistance of the system, and the brittleness coefficient decreases with the increase of fiber content. For the same age, the brittleness coefficient of PS group is higher than that of PMMA group under the same fiber content. The sulfuric acid corrosion resistance and chloride ion permeation resistance of transparent concrete decreased with the addition of optical fiber, and the sulfuric acid corrosion resistance and chloride ion permeability decreased with the increase of fiber content. With the increase of fiber content, the transmittance of PS fiber is slightly lower than that of PMMA sample, but the difference is not significant.
【作者单位】：中建商品混凝土有限公司;
【基金】：中建股份科技研发课题(CSCEC-2015-Z-56)
【分类号】：TU528.38

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