摘要
选择环氧树脂E51作为改性填料,制备出一系列不同树脂质量分数(0%、2%、4%和6%)的发光树脂透水混凝土。环氧树脂的引入使发光树脂透水混凝土的抗压强度和抗折强度均得到了提高,且随着树脂掺量的增加呈现出先升高后降低的趋势,在树脂质量分数为4%时,抗压强度和抗折强度均达到最大值21.7和6.11 MPa,发光树脂透水混凝土的透水系数随着环氧树脂质量分数的增加呈现出先降低后升高的趋势,在4%时透水系数最低为5.1 mm/s。微观形貌分析发现未经改性的环氧树脂透水混凝土的断面处有明显的裂痕和气孔,整体结构较为疏松,在引入环氧树脂后,裂痕和气孔的数量明显减少,整体结合较为紧密,发光树脂透水混凝土的发光时间与树脂质量分数关系不大,且发光透水混凝土在光照1 h下可以保持超过5 h的较为高效的发光时间。
Epoxy resin E51 is selected as the modified filler to prepare a series of luminous resin waterpermeable concretes with different resin mass fraction(0%,2%,4%,6%). The introduction of epoxy resinimproves the compressive strength and flexural strength of luminous resin permeable concrete,and with theincrease of the resin content,it shows a trend of increasing followed by decreasing. When the resin content is4%,the compressive strength and flexural strength both reach the maximum values of 21. 7 MPa and6. 11 MPa. The water permeability coefficient of luminescent resin permeable concrete shows a trend ofdecreasing followed by increasing with the increase of epoxy resin content. The lowest water permeabilitycoefficient is 5. 1 mm/s at 4%. The microscopic morphology analysis reveals that the cross-section of theunmodified epoxy resin permeable concrete has obvious cracks and pores,and the overall structure isrelatively loose. After the introduction of epoxy resin,the number of cracks and pores is significantlyreduced,and the overall integration is tighter. The luminescence time of the luminescent resin permeableconcrete has little relationship with the resin content,and the luminescent permeable concrete can maintain amore efficient luminescence time of more than 5 h under 1 h of light.
作者
唐永鑫
聂立武
TANG Yong-Xin;NIE Li-Wu(Liaoning Jianzhu Vocational College,Liaoning 111000,China)
出处
《应用化学》
CAS
CSCD
北大核心
2022年第11期1665-1671,共7页
Chinese Journal of Applied Chemistry
基金
辽宁省自然科学基金(No.201202096)资助。
关键词
环氧树脂
透水混凝土
长余辉材料
透水性
力学性能
微观形貌
发光性能
Epoxy resin
Permeable concrete
Long afterglow material
Water permeability
Mechanicalproperties
Microscopic morphology
Luminous properties
作者简介
唐永鑫,E-mail:lijing2178@163.com。
