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新型墻體材料及其在圍護(hù)結(jié)構(gòu)中的應(yīng)用研究

發(fā)布時(shí)間:2018-06-14 16:00

  本文選題:新型墻體材料 + 保溫隔熱性能。 參考:《安徽建筑大學(xué)》2015年碩士論文


【摘要】:安徽省兩淮礦區(qū)每年排放大量的固體廢棄物(粉煤灰、煤矸石),年排放量有1000萬(wàn)噸,利用率低,污染嚴(yán)重,并造成可再生資源的浪費(fèi);而目前國(guó)家對(duì)建筑建材綠色化又高度重視,“禁實(shí)禁粘”出臺(tái)多項(xiàng)規(guī)定。因此如何結(jié)合我省地方資源,利用兩淮地區(qū)固體廢棄物生產(chǎn)綠色建筑材料已成為我省建筑節(jié)能發(fā)展的必然趨勢(shì)。以粉煤灰、煤矸石為原料制備的新型墻體材料具有減輕自重,保溫隔熱,節(jié)約能源等優(yōu)點(diǎn)。本課題圍繞兩淮礦區(qū)粉煤灰、煤矸石生產(chǎn)新型墻體材料為研究對(duì)象,制備出粉煤灰蒸壓加氣混凝土砌塊、粉煤灰混凝土空心砌塊(內(nèi)填XPS板)、燒結(jié)煤矸石空心磚,其粉煤灰最大摻量達(dá)60%、煤矸石最大摻量達(dá)100%。課題針對(duì)三種新型墻材和傳統(tǒng)實(shí)心粘土磚在我省工程實(shí)際應(yīng)用進(jìn)行了系統(tǒng)試驗(yàn)研究,結(jié)合我省夏熱冬冷地區(qū)環(huán)境在合肥安徽建筑大學(xué)校內(nèi)搭建四種240mm厚的不同圍護(hù)結(jié)構(gòu)材料示范房。采用熱箱法對(duì)墻體材料傳熱系數(shù)進(jìn)行現(xiàn)場(chǎng)熱工性能分析;對(duì)試驗(yàn)房?jī)?nèi)空調(diào)選型,溫濕度采集方案及數(shù)據(jù)處理方案等進(jìn)行了開(kāi)發(fā)及優(yōu)化設(shè)計(jì)。研究了2013年合肥地區(qū)全年室內(nèi)外氣候分析,室內(nèi)環(huán)境、舒適度評(píng)價(jià);進(jìn)行了試驗(yàn)房的能耗、降溫、升溫、恒溫階段試驗(yàn),探討新型墻體材料與傳統(tǒng)粘土磚之間的相互關(guān)系;依據(jù)國(guó)家設(shè)計(jì)標(biāo)準(zhǔn)50%-65%建筑節(jié)能要求,對(duì)合肥地區(qū)常見(jiàn)且節(jié)能率較高的粉煤灰蒸壓加氣混凝土圍護(hù)結(jié)構(gòu)材料進(jìn)行外墻外保溫(改姓EPS板厚80mm)試驗(yàn)研究,通過(guò)軟件模擬及試驗(yàn)相結(jié)合,對(duì)比分析外墻外保溫粉煤灰蒸壓加氣混凝土砌塊保溫隔熱性能,并就粉煤灰蒸壓加氣混凝土砌塊溫差變化對(duì)墻體應(yīng)力應(yīng)變的影響進(jìn)行了探討。試驗(yàn)結(jié)果表明利用兩淮礦區(qū)固體廢棄物制備三種新型墻體材料在夏熱冬冷地區(qū)現(xiàn)場(chǎng)進(jìn)行熱工性能分析,其傳熱系數(shù)均小于傳統(tǒng)粘土實(shí)心磚;新型墻體材料對(duì)室內(nèi)環(huán)境及人體舒適度無(wú)危害影響;全煤矸石制備的燒結(jié)煤矸石空心磚砌筑的試驗(yàn)房冬季相對(duì)節(jié)能8.3%,夏季相對(duì)節(jié)能9.6%;粉煤灰摻量30%的混凝土空心砌塊砌筑試驗(yàn)房冬季相對(duì)節(jié)能18.0%,夏季相對(duì)節(jié)能10.5%;粉煤灰摻量60%的加氣混凝土砌塊砌筑的試驗(yàn)房冬季相對(duì)節(jié)能27.3%,夏季相對(duì)節(jié)能31.1%,由此可見(jiàn),粉煤灰加氣混凝土砌塊砌筑試驗(yàn)房節(jié)能降耗優(yōu)勢(shì)明顯。試驗(yàn)結(jié)果表明冬季粉煤灰加氣混凝土圍護(hù)結(jié)構(gòu)材料降溫速度較慢,具有較好的保溫性能;夏季升溫速度較慢,具有較好的隔熱性能。從冬季、夏季恒溫階段波形趨勢(shì)圖中表明,峰值數(shù)與試驗(yàn)房能耗具有一定的相關(guān)性。通過(guò)外貼改性EPS板外墻外保溫系統(tǒng)的試驗(yàn)房相對(duì)節(jié)能高達(dá)57.8%,效果明顯提高;軟件模擬分析得出粉煤灰加氣混凝土砌塊墻體邊緣部位受溫度差應(yīng)力應(yīng)變影響相對(duì)較大;試驗(yàn)研究墻體邊緣部位應(yīng)變集中,大小關(guān)系是左下角右上角中間部位。本課題通過(guò)對(duì)采用不同圍護(hù)結(jié)構(gòu)材料工程示范房系統(tǒng)試驗(yàn)研究、軟件模擬分析,該成果能夠?yàn)橄臒岫涞貐^(qū)新型節(jié)能保溫材料的選擇和推廣應(yīng)用提供理論依據(jù)。
[Abstract]:The two Huai mining area in Anhui province releases a large amount of solid waste (fly ash and coal gangue) every year. The annual discharge amount is 10 million tons, the utilization rate is low, the pollution is serious, and the waste of renewable resources is caused. At present, the country attaches great importance to the green building materials, and the "Prohibition of real prohibition of sticky" has issued a number of regulations. The production of green building materials with solid waste in the two Huaihe region has become an inevitable trend in the development of energy conservation in our province. The new wall materials prepared with fly ash and coal gangue as raw materials have the advantages of reducing self weight, heat insulation and energy saving. This topic focuses on the research of the powder coal ash in the two Huaihe mining area and the new wall material for the production of coal gangue. Like, the fly ash autoclaved aerated concrete block, fly ash concrete hollow block (filled with XPS plate), sintered coal gangue hollow brick, the maximum amount of fly ash content up to 60%, the maximum amount of coal gangue up to 100%. subject to the practical application of the three new types of wall materials and traditional solid clay bricks in the practical application of the project in our province, combined with me Four kinds of material demonstration rooms with different envelopes with 240mm thickness are set up in the Hefei Anhui Architecture University. The thermal performance analysis of the heat transfer coefficient of the wall materials is carried out by the hot box method, and the design of the air conditioning system in the test room, the temperature and humidity collection scheme and the data management scheme are developed and optimized. The indoor and outdoor climate analysis, indoor environment and comfort evaluation of Hefei area in 2013 were studied. Energy consumption, cooling, heating and constant temperature test were carried out in the laboratory. The relationship between the new wall material and the traditional clay bricks was discussed. According to the national design standard 50%-65% building energy saving requirement, the common and energy saving rate in Hefei area was more common. High fly ash autoclaved aerated concrete enclosure material is used to carry out external thermal insulation of exterior wall (modified EPS plate thickness 80mm) test. Through the combination of software simulation and test, the thermal insulation performance of the autoclaved aerated concrete block with external thermal insulation fly ash is compared and analyzed, and the stress on the temperature difference of the aerated concrete block of the fly ash autoclaved aerated concrete block is applied to the wall stress The effect of strain is discussed. The results show that the thermal performance analysis of three new wall materials made of solid waste in two Huaihe mining area is carried out in the hot summer and cold winter area. The heat transfer coefficient is less than the traditional clay brick; the new wall material has no harm to the indoor environment and the human body comfort; the whole coal gangue is prepared. The test room of the sintered coal gangue hollow brick is 8.3% energy saving in winter and 9.6% in summer. The concrete hollow block masonry test room with 30% fly ash content is relatively energy saving in winter and 10.5% in summer, and the test room with aerated concrete block with 60% powder of fly ash is 27.3% in winter and relative in summer. 31.1%, it can be seen that the fly ash aerated concrete block masonry building test room has an obvious advantage in energy saving and consumption reduction. The test results show that the winter fly ash aerated concrete enclosure material has a slower cooling rate and better insulation performance, and the heating speed is slow in summer and has better thermal insulation performance. The potential diagram shows that the peak value has a certain correlation with the energy consumption of the test room. The experimental room with external insulation system of external wall modified EPS board is up to 57.8%, and the effect is obviously improved; the influence of the temperature difference stress and strain on the edge of the fly ash aerated concrete block wall is relatively large by the software simulation analysis. The strain concentration at the edge of the wall is the middle part of the upper right corner of the lower left corner. This topic can provide a theoretical basis for the selection and application of new energy saving thermal insulation materials in hot summer and cold winter areas through the experimental research on the system of material engineering demonstration rooms with different enclosure structures and software simulation analysis.
【學(xué)位授予單位】:安徽建筑大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:TU522

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