砼砂基透水磚制備與鋪裝設(shè)計研究
發(fā)布時間：2018-11-19 09:29
【摘要】：透水鋪裝可以有效降低城市內(nèi)澇風(fēng)險,緩解城市水資源緊張狀況和熱島效應(yīng)、雨島效應(yīng)等種種生態(tài)問題,本文在此背景下開展透水鋪裝的研究。首先進行了新型透水鋪裝面層材料—砂基透水磚的試驗制備,成功制備出在物理性能上滿足國家行業(yè)標準且造價較低廉的砼砂基透水磚,然后就目前國內(nèi)透水性鋪裝理論研究落后于實踐的現(xiàn)象,對其鋪裝設(shè)計進行了分析,最后以大連市為研究區(qū)域,進行了新型透水人行道的結(jié)構(gòu)設(shè)計。主要內(nèi)容有以下幾個方面： (1)研究了以水泥作為粘結(jié)劑,沙漠中的烘干砂為主要骨料,添加少量粗骨料和添加劑,通過預(yù)留透水孔保證磚體的透水性,制備高強多孔砼砂基透水磚的可行性。對制備的產(chǎn)品進行了抗壓強度、透水性、保水性等基本物理性能測試,并對產(chǎn)品造價進行了估算,分析了應(yīng)用前景。試驗結(jié)果顯示超過一半的試驗組次抗壓強度可達60MPa以上,抗壓強度最小的一組,其平均抗壓強度也達到了34.9MPa,超過了我國建材行業(yè)標準中Cc30透水磚的抗壓強度不低于30.OMPa的要求；預(yù)設(shè)的透水孔保證了砼透水磚的透水性,并且考慮到人行道舒適性及避免出現(xiàn)堵塞現(xiàn)象,將透水孔設(shè)計為上小下大；研制產(chǎn)品每平米成本大都在60～100元,與同類產(chǎn)品相比較低,具備一定的價格優(yōu)勢,推廣應(yīng)用前景良好。 (2)目前透水鋪裝已經(jīng)在國內(nèi)部分城市得到了應(yīng)用,但是對透水鋪裝的研究多集中在面層材料方面,對透水性鋪裝結(jié)構(gòu)的研究較少,還沒有與之配套的理論分析及設(shè)計方法。本文在閱讀相關(guān)文獻的基礎(chǔ)上對透水鋪裝的分類、常見結(jié)構(gòu)形式進行了介紹,通過對其透水機理的分析研究,總結(jié)了透水鋪裝設(shè)計的基本原理、設(shè)計參數(shù)和步驟流程。最后針對國內(nèi)外在透水路面使用過程中出現(xiàn)的結(jié)構(gòu)性破壞和功能性損失這兩種典型問題進行了總結(jié)并分析了原因,提出了一些應(yīng)對辦法。 (3)以大連市為研究區(qū)域,參照本研究試驗和透水鋪裝設(shè)計分析成果,對大連市的透水人行道結(jié)構(gòu)進行了設(shè)計研究,提出了新型透水人行道結(jié)構(gòu),為大連市透水鋪裝的推廣應(yīng)用提供評估和參考的依據(jù)。
[Abstract]:Permeable pavement can effectively reduce the risk of urban waterlogging, alleviate the urban water resources stress, heat island effect, rain island effect and other ecological problems. In this context, the research of permeable pavement is carried out in this paper. Firstly, a new type of permeable surfacing material, sand based permeable brick, was prepared, and the concrete sand based permeable brick, which met the national standard in physical properties and was cheaper in cost, was successfully prepared. Then, the phenomenon that the theory of permeable pavement is behind the practice is analyzed. Finally, the structure design of the new permeable sidewalk is carried out with Dalian as the research area. The main contents are as follows: (1) the water permeability of brick body is ensured by reserving water permeable hole, using cement as binder, drying sand in desert as main aggregate and adding a small amount of coarse aggregate and additive. The feasibility of preparing high strength porous concrete sand-based permeable brick. The basic physical properties of the prepared products, such as compressive strength, water permeability and water retention, were tested, and the cost of the products was estimated, and the application prospect was analyzed. The test results show that the secondary compressive strength of more than half of the test groups is above 60MPa, and the average compressive strength of the group with the lowest compressive strength is 34.9 MPA. The compressive strength of Cc30 permeable brick is not lower than that of 30.OMPa. The preset permeable hole ensures the permeability of the concrete permeable brick, and considering the comfort of the sidewalk and avoiding the phenomenon of clogging, the permeable hole is designed for the upper, smaller and bigger; The cost per square meter of the developed product is mostly 60,100 yuan, which is lower than the similar products, has certain price advantage, and has a good prospect of popularization and application. (2) at present, permeable pavement has been applied in some cities in our country, but the research on permeable pavement is mostly focused on surface layer material, and the research on permeable pavement structure is less, and there is no corresponding theoretical analysis and design method. This paper introduces the classification and common structure of permeable pavement on the basis of reading relevant documents. Through the analysis and study of its permeable mechanism, the basic principle, design parameters and procedure flow of permeable pavement design are summarized. Finally, this paper summarizes and analyzes the two typical problems of structural damage and functional loss in the process of using permeable pavement, and puts forward some countermeasures. (3) taking Dalian as the research area, referring to the research experiment and the design and analysis results of the permeable pavement, the structure of the permeable sidewalk in Dalian is designed and studied, and a new type of permeable pavement structure is put forward. It provides the basis of evaluation and reference for the popularization and application of permeable pavement in Dalian.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414;U412.378
[Abstract]:Permeable pavement can effectively reduce the risk of urban waterlogging, alleviate the urban water resources stress, heat island effect, rain island effect and other ecological problems. In this context, the research of permeable pavement is carried out in this paper. Firstly, a new type of permeable surfacing material, sand based permeable brick, was prepared, and the concrete sand based permeable brick, which met the national standard in physical properties and was cheaper in cost, was successfully prepared. Then, the phenomenon that the theory of permeable pavement is behind the practice is analyzed. Finally, the structure design of the new permeable sidewalk is carried out with Dalian as the research area. The main contents are as follows: (1) the water permeability of brick body is ensured by reserving water permeable hole, using cement as binder, drying sand in desert as main aggregate and adding a small amount of coarse aggregate and additive. The feasibility of preparing high strength porous concrete sand-based permeable brick. The basic physical properties of the prepared products, such as compressive strength, water permeability and water retention, were tested, and the cost of the products was estimated, and the application prospect was analyzed. The test results show that the secondary compressive strength of more than half of the test groups is above 60MPa, and the average compressive strength of the group with the lowest compressive strength is 34.9 MPA. The compressive strength of Cc30 permeable brick is not lower than that of 30.OMPa. The preset permeable hole ensures the permeability of the concrete permeable brick, and considering the comfort of the sidewalk and avoiding the phenomenon of clogging, the permeable hole is designed for the upper, smaller and bigger; The cost per square meter of the developed product is mostly 60,100 yuan, which is lower than the similar products, has certain price advantage, and has a good prospect of popularization and application. (2) at present, permeable pavement has been applied in some cities in our country, but the research on permeable pavement is mostly focused on surface layer material, and the research on permeable pavement structure is less, and there is no corresponding theoretical analysis and design method. This paper introduces the classification and common structure of permeable pavement on the basis of reading relevant documents. Through the analysis and study of its permeable mechanism, the basic principle, design parameters and procedure flow of permeable pavement design are summarized. Finally, this paper summarizes and analyzes the two typical problems of structural damage and functional loss in the process of using permeable pavement, and puts forward some countermeasures. (3) taking Dalian as the research area, referring to the research experiment and the design and analysis results of the permeable pavement, the structure of the permeable sidewalk in Dalian is designed and studied, and a new type of permeable pavement structure is put forward. It provides the basis of evaluation and reference for the popularization and application of permeable pavement in Dalian.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U414;U412.378
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