Test and Study for Pullout Test Method Estimating Concrete Quality.

• Main Authors: Yi-Hao Chen, 陳怡豪
• Other Authors: 彭添富
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/6mjq48

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 93 === The concrete material is used in the construction projects now, and is still playing a very important role. No matter it is in main structures or secondary structures, the usage of the concrete count is much steres. The material is used in big quantity and its variability is complex, it will influence the security of the structures directly whether the quality of the concrete is good or bad. And the strength is a reference index of the concrete quality, we can know whether the concrete perform its efficiency or not via the number of strength. This research utilizes the pullout test method to assess the intensity of concrete. This method is one kind of non-destructive test methods. To use this method, we can find out the relationship between the strength of the concrete and the pullout strength. After record its physical values, we establish the relation curve between the two values. When the curve was set up, we can predict effectively whether the concrete reach the set intensity. This method of non-destructive test methods is not common in our country, but it is still necessity to be popularized. Because we discover the relationship between the pullout strength that was calculated from the maximum pullout force and the strength of cylinder specimen is greatest while getting the results. The machine of the pullout test method is cheaper than machines of other non-destructive test methods, and the method can present the accurate results. So this kind of detection technique waits to popularize in fact, it is believed that it can make better quality in construction projects.