Studies on the Engineering Properties of Concrete Containing Vinyl Acetate-Ethylene Powder

• Main Authors: Yu-Lun He, 何育倫
• Other Authors: Dr.Yeong-Nain Sheen
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/67775053970966075175

碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 96 === This research treats about the effect engineering properties of concrete contain Viny1 Acetate-Ethylene (VAE) polymer powder. The first step is experiment of cement mortars test; use different of water-cement ratio (W/C=0.4, 0.48, 0.56) and add in different ratio of VAE polymer powder (P/C=0%, 5%, 10%, 15%) as variable to execute following tests: fresh-mixing and hardened in order to seek out the best proportion of VAE polymer powder in cement based–materials. The result of research shows that the mortars after adding on VAE polymer powder has better tensile strength, permeability and volume stability, moreover, after analysis of various testing, the best dosage of VAE polymer powder is 5%~10%. The second step is the experiment of concrete test, use the same of water-cement ratio (W/C=0.4, 0.48, 0.56) and the best dosage range of VAE polymer powder(P/C=5%, 7.5%, 10%) after amendment, then with ordinary portland concrete to find out the complexion of engineering properties, durability and microstructure of polymer-modified concrete (PMC); The test include the compressive strength, static modulus of elasticity, flexural strength, splitting tensile strength, water absorption rate, ultrasonic pulse velocity, electrical receptivity, rapid chloride ion penetration and field emission scanning electron microscope (FE-SEM). The result of research shows that the concrete which added with VAE polymer powder appearance higher tensile strength, strain energy, water resistant, concrete resistivity and lower permeability, by through observing FE-SEM, the VAE polymer powder with concrete had dense effect to procure higher water resistant. After analysis of various concrete testing, the best dosage of VAE polymer powder is 7.5%.