本文關鍵詞： 蒸壓粉煤灰磚 水泥混合砂漿 砂漿強度 貫入法 點荷法 對比試驗　出處：《沈陽建筑大學》2013年碩士論文　論文類型：學位論文

【摘要】：蒸壓粉煤灰磚是目前我國重點推廣的墻體建筑材料之一,在遼寧地區(qū)和其他省市對材料力學性能都進行了大量的試驗研究,但國內對于蒸壓粉煤灰磚等非燒結類磚砌體砂漿抗壓強度的現場檢測研究并不多,相關國家標準和行業(yè)標準中主要是介紹對燒結磚砌筑砂漿強度的現場檢測技術。近幾年由于此材料的大力推廣,在現場檢測過程中檢測此種磚的砌筑砂漿強度時沒有相關標準規(guī)范作為檢測依據。由于上述原因和現狀,進行了水泥混合砂漿砌筑的蒸壓粉煤灰磚砌體的砌筑砂漿強度檢測試驗,在本文中介紹了試驗過程和試驗結果。 本次試驗,以同條件養(yǎng)護標準砂漿試塊抗壓強度代表墻體砂漿現齡期抗壓強度,基于規(guī)范選取工程檢測上常用的貫入法、點荷法檢測水泥混合砂漿砌筑的蒸壓粉煤灰磚砌體砂漿強度進行驗證性試驗研究,同時,將試驗結果與規(guī)范測強曲線進行對比,對于誤差較大的檢測方法,需要重新回歸或者修正原測強曲線。同時砌筑少量燒結磚墻進行對比。 本文對試驗數據離散較大的數據進行剔除后,進行了統(tǒng)計分析,其中貫入法試驗數據的平均相對誤差和相對標準差均能符合規(guī)范要求,可以認為貫入法測強適用于混合砂漿砌筑的蒸壓粉煤灰磚砌體的砂漿強度檢測；點荷法數據經比較后發(fā)現,蒸壓粉煤灰磚的實際結果均要小于規(guī)范的推定值,因此對數據進行了分類并與規(guī)范測強曲線比較,提出了精度較高的修正公式。
[Abstract]:Autoclaved pulverized coal brick is one of the most important wall building materials in China. A large number of experimental studies have been carried out on the mechanical properties of materials in Liaoning and other provinces and cities. However, there are few researches on the field test of compressive strength of non-sintered brick masonry such as autoclaved pulverized coal brick in China. The related national standards and industry standards mainly introduce the field testing technology for the strength of sintered brick masonry mortar. In recent years, due to the popularization of this material, The masonry mortar strength of this kind of brick is tested in the process of field inspection without relevant standard and specification as the basis of the inspection. Because of the above reasons and present situation, The test of masonry strength of autoclaved pulverized coal brick masonry with cement mixed mortar is carried out. The test process and test results are introduced in this paper. In this experiment, the compressive strength of the standard mortar under the same condition is used to represent the compressive strength of the wall mortar in its current age. Based on the selection of specifications, the commonly used penetration method in engineering inspection is selected. The strength of autoclaved pulverized coal brick masonry masonry masonry with cement mixed mortar is tested by point loading method. At the same time, the test results are compared with the standard strength measurement curve. The original strength curve needs to be regressed or revised. A small number of sintered brick walls are also built for comparison. In this paper, the test data are eliminated and the average relative error and the relative standard deviation of the penetration test data can meet the requirements of the specification. It can be considered that the strength measurement by penetration method is suitable for the mortar strength test of autoclaved pulverized coal brick masonry built with mixed mortar, and the actual results of autoclaved fly ash brick are all smaller than the predicted values of the specification after comparing the data of point loading method. Therefore, the data are classified and compared with the standard strength curve, and a correction formula with high accuracy is proposed.
【學位授予單位】：沈陽建筑大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TU522.1;TU578.1

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本文編號：1512636