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结合行业标准《非烧结砖砌体现场检测技术规程》的制订,对国家标准《砌体工程现场检测技术标准》GB/T50315中检测砂浆强度的10余种方法能否用于非烧结砖砌体工程的现场检测开展了大量的试验研究.研究表明,这些方法多数不能直接用于非烧结砖砌体工程的现场检测.根据试验回归建立了回弹法检测混凝土小砌块强度的公式,并根据试验研究数据重新回归拟合了用于非烧结砖砌体工程现场检测的公式,包括砂浆回弹法、筒压法、点荷法、砂浆片局压法等,可为行业标准《非烧结砖砌体现场检测技术规程》的编制提供参考.
Combined with the industry standard “non-sintered brick masonry site inspection technical regulations,” the formulation of the national standard “masonry site inspection technical standards” GB / T50315 mortar strength test in more than 10 kinds of methods can be used for non-sintered brick masonry A large number of experimental studies have been carried out in the on-site inspection of the project.The research shows that most of these methods can not be directly applied to on-site testing of non-sintered brickwork.According to the test regression, the formula of rebound method for testing the strength of concrete blocks is established, The test data are regressed and fitted to the formula used for non-sintered brick masonry site inspection, including mortar rebound method, cylinder pressure method, point load method and mortar pressure method, which can be used as the industry standard “non-sintered brick Masonry site inspection technical regulations ”for the preparation of reference.