本文選題：再生磚 + 植生混凝土�。� 參考：《山東農(nóng)業(yè)大學(xué)》2014年碩士論文

【摘要】：隨著我國(guó)經(jīng)濟(jì)的快速發(fā)展和城市建設(shè)步伐的加快、新農(nóng)村建設(shè)工作的不斷深入及舊農(nóng)村改造,地面被大量的建筑物和混凝土道路所覆蓋,城市綠色植被面積明顯減少,熱島效應(yīng)加劇,同時(shí)城鄉(xiāng)拆遷產(chǎn)生了大量的廢棄磚,造成了資源的浪費(fèi)；利用廢棄磚作為植生混凝土再生骨料既可以解決廢棄粘土磚造成的污染,又可以改善生態(tài)環(huán)境。植生混凝土在國(guó)外已經(jīng)發(fā)展的比較成熟,而在國(guó)內(nèi)的卻剛剛起步,許多學(xué)者已經(jīng)取得一些成果,但利用廢棄磚再生骨料制備植生型多孔連續(xù)型混凝土方面的研究還未見相關(guān)報(bào)道,因此,研究再生磚骨料植生混凝土非常有必要。 本文在借鑒國(guó)外研究成果的同時(shí),立足于國(guó)內(nèi)的研究現(xiàn)狀,針對(duì)再生磚骨料植生混凝土結(jié)構(gòu)的特點(diǎn),著重研究再生磚瓦骨料植生混凝土的制備方法、降堿和植生技術(shù),為工程應(yīng)用提供參考。試驗(yàn)研究結(jié)果表明： (1)針對(duì)碎磚集料吸水率高、強(qiáng)度低的特點(diǎn),提出了采用二次裹漿法提升再生磚骨料性能。針對(duì)再生磚骨料植生混凝土在國(guó)內(nèi)的研究較少這一現(xiàn)狀,目前還沒有統(tǒng)一合理的配合比設(shè)計(jì)方法,提出了以空隙率為主要設(shè)計(jì)參數(shù),強(qiáng)度為次要設(shè)計(jì)參數(shù)的設(shè)計(jì)思路。水灰比初配試驗(yàn)證明：當(dāng)水灰比在0.29-0.33時(shí),水泥砂漿具有一定的流動(dòng)性和粘聚性；最佳水灰比為0.31,目標(biāo)空隙率為30%,再生磚骨料植生混凝土的強(qiáng)度為4.92MPa,滿足了工程護(hù)坡的要求。針對(duì)再生磚骨料植生混凝土空隙率大、骨料吸水率高的特點(diǎn),配合比可用“飽和骨料體積法”計(jì)算。 (2)本文在分析植生混凝土內(nèi)部孔隙堿類物質(zhì)的來源、存在形態(tài)后,設(shè)計(jì)了用清水浸泡和用FeSO4溶液處理兩種方法改造再生磚骨料植生混凝土孔隙內(nèi)堿性的對(duì)比試驗(yàn)。試驗(yàn)表明：用清水隔天換水可以將再生磚骨料植生混凝土孔隙內(nèi)的PH降到9-10之間；用FeSO4溶液處理后的植生混凝土孔隙內(nèi)的PH能達(dá)到8-9之間,但對(duì)強(qiáng)度有定的破壞。綜合考慮,用清水浸泡處理是一種改善再生磚骨料植生混凝土孔隙內(nèi)堿性水環(huán)境的有效方法,工程中可以通過延長(zhǎng)自然養(yǎng)護(hù)時(shí)間達(dá)到降堿目的。 (3)針對(duì)工程應(yīng)用中實(shí)際要求,分析了種植基質(zhì)、草種的種類和選材原則,研究不同的種植基質(zhì)對(duì)再生磚骨料植生混凝土上的植物生長(zhǎng)狀況的植生試驗(yàn),試驗(yàn)表明：將種植基質(zhì)、土壤與種子等按照一定比例攪拌均勻后,采取灌漿法或分層播種法填充在再生磚骨料植生混凝土內(nèi)部空隙,加上必要的養(yǎng)護(hù)與管理,植物可以在上健康良好的生長(zhǎng)。
[Abstract]:With the rapid development of our economy and the acceleration of the pace of urban construction, the construction of new rural areas and the reconstruction of old rural areas, the ground is covered by a large number of buildings and concrete roads, and the area of urban green vegetation is obviously reduced. The heat island effect is intensified, at the same time, a large number of abandoned bricks are produced in urban and rural demolition, resulting in a waste of resources. The use of waste bricks as recycled aggregate of planting concrete can not only solve the pollution caused by abandoned clay bricks, but also improve the ecological environment. Planting concrete has developed more mature in foreign countries, but it has just started in China. Many scholars have already made some achievements. However, the research on the preparation of porous continuous concrete with recycled brick aggregate has not been reported. Therefore, it is necessary to study the recycled brick aggregate planting concrete. According to the characteristics of recycled brick aggregate planting concrete structure, the preparation method, alkali reduction and planting technology of recycled brick and tile aggregate planting concrete are studied in this paper. It provides reference for engineering application. The experimental results show that: 1) aiming at the characteristics of high water absorption rate and low strength of broken brick aggregate, a new method is proposed to improve the properties of recycled brick aggregate. In view of the fact that there is little research on recycled brick aggregate planting concrete in our country, there is no uniform and reasonable design method of mix ratio at present. The design idea of taking porosity as the main design parameter and strength as the secondary design parameter is put forward. The initial water-cement ratio test shows that when the water-cement ratio is 0.29-0.33, the cement mortar has certain fluidity and cohesion, the optimum water-cement ratio is 0.31, the target void ratio is 30 and the strength of regenerated brick aggregate is 4.92 MPa, which meets the requirements of engineering slope protection. In view of the characteristics of large void ratio and high water absorption of recycled brick aggregate, the mixture ratio can be calculated by saturated aggregate volume method. 2) after analyzing the source and form of alkali material in the pore of regenerated concrete, a comparative experiment was designed to reconstruct the alkalinity in the pore of regenerated brick aggregate by soaking in water and treating with FeSO4 solution. The results show that the PH in the pore of regenerated brick aggregate can be reduced to 9-10 by changing water every other day, and the PH in the pore of regenerated concrete treated with FeSO4 solution can reach 8-9, but the strength of the pore can be destroyed. Comprehensive consideration is that soaking with clear water is an effective method to improve the alkaline water environment in the pore of regenerated brick aggregate planting concrete. The purpose of reducing alkali can be achieved by prolonging the natural curing time in engineering. (3) according to the practical requirements of engineering application, this paper analyzes the kinds of planting matrix, grass seed and material selection principle, and studies the planting test of plant growth condition on regenerated brick aggregate planting concrete with different planting matrix. After the soil and seed were stirred evenly according to a certain proportion the plants could grow healthily on the ground by filling the inner voids in the regenerated brick aggregate planting concrete by grouting or stratified seeding together with the necessary maintenance and management.
【學(xué)位授予單位】：山東農(nóng)業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TU528

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 嚴(yán)捍東;陳秀峰;;廢棄黏土磚再生骨料對(duì)混凝土性能的影響研究[J];四川建筑科學(xué)研究;2009年05期

2 孫永軍;楊慧;張振;齊勇;;環(huán)保型綠色植被混凝土技術(shù)介紹[J];低溫建筑技術(shù);2009年04期

3 樊建超,羅仁安,馮輝榮;植物相容型生態(tài)混凝土的制備試驗(yàn)與研究[J];福建林業(yè)科技;2005年03期

4 謝玲君;翟愛良;王暉;張壯壯;葉路路;;燒結(jié)磚瓦再生骨料級(jí)配對(duì)混凝土力學(xué)性能的影響[J];水利與建筑工程學(xué)報(bào);2010年06期

5 杜婷,李惠強(qiáng),覃亞偉,鐘聲華;再生混凝土未來發(fā)展的探討[J];混凝土;2002年04期

6 劉榮桂,萬煒,吳智仁,吳春篤;淹水區(qū)邊坡的生態(tài)型護(hù)坡技法及其耐久性研究[J];混凝土;2005年08期

7 張孟雄;張學(xué)良;王衛(wèi)秋;吳國(guó)強(qiáng);薛奇峰;;建筑垃圾磚的開發(fā)及應(yīng)用[J];磚瓦世界;2006年08期

8 董建偉,肖新民;隨機(jī)多孔型綠化混凝土主要生長(zhǎng)環(huán)境與構(gòu)造特性[J];吉林水利;2003年08期

9 王蔚,劉海峰;植生型多孔混凝土配合比設(shè)計(jì)方法初探[J];江蘇建筑;2005年01期

10 杜婷,李惠強(qiáng),周玉峰,吳賢國(guó);再生骨料混凝土基本特性的研究思路探討[J];建筑技術(shù)開發(fā);2002年06期

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