本文選題：膨脹頁巖　切入點：輕骨料（陶粒）　出處：《湖南大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：防火門是指在一定時間內(nèi)能滿足耐火穩(wěn)定性、完整性和隔熱性要求的主要用于建筑防火分區(qū)的防火墻開口、樓梯間出入口、疏散走道、管道井口等處的消防裝置。防火門的開啟，平常可用于人員通行。當(dāng)發(fā)生火災(zāi)時，關(guān)閉防火門則可起到阻止火焰蔓延、防止燃燒煙氣流動，并在正送風(fēng)系統(tǒng)工作時起密封作用。防火門芯板填充材料是決定防火門質(zhì)量的關(guān)鍵。近年來，高層建筑、大型商場、賓館、飯店和影院等的數(shù)量不斷興建，防火門的用量急劇增加。高層建筑火災(zāi)事故時有發(fā)生，給人們的生命財產(chǎn)帶來了巨大損失。防火門則成為了保護(hù)人們生命財產(chǎn)的重要屏障。 硅酸鹽鋁棉、巖棉和玻璃棉等是以前用于防火門芯板的主要填充材料，其生產(chǎn)過程中粉塵大、污染重、嚴(yán)重危害人們的身體健康，而逐漸被新材料替代。新版GB12955-2008《防火門》要求填充材料必須耐火、環(huán)保。因此，質(zhì)輕、環(huán)保、耐火性好。新型防火門芯板填充材料的研制迫在眉睫。 本文討論了將頁巖燒制成的陶粒為骨料，以水泥、石膏、粉煤灰為膠凝材料，采用輕骨料混凝土的工藝方法制備了質(zhì)輕、環(huán)保、耐火的輕骨料混凝土防火門芯板。本文也探討了直接以膨脹頁巖為原料，生產(chǎn)出塊狀的防火門芯板的可能性。 本文首先研究了湖南益陽某地頁巖原料的膨脹特征及燒成工藝制度。通過研究頁巖的化學(xué)成分、礦物成分以及綜合熱分析特征，分析了頁巖的膨脹機(jī)理，評價了輕骨料陶粒制備的可行性。研究了頁巖燒制陶粒的燒成溫度、升溫速率、保溫時間等方面的工藝參數(shù)。確定了燒結(jié)溫度為1200℃，升溫速率為13℃/min，保溫時間為20min為較為理想的燒成制度。分別在河南和湖南祁東的陶粒廠進(jìn)行了工業(yè)化試驗，所得輕骨料經(jīng)湖南省建筑材料質(zhì)檢站檢驗，其容重等級為400kg/m3，，抗壓強(qiáng)度為≥1.0MPa，軟化系數(shù)≥0.8，無放射性，各項性能指標(biāo)完全符合國家相關(guān)標(biāo)準(zhǔn)的要求。 本文利用預(yù)填骨料灌漿法制備了各項性能指標(biāo)符合防火門芯板的骨料混凝土。首先采用固定其它變量，只變其中某個因素，分別研究了水、石膏、粉煤灰對輕骨料混凝土性能的影響。在此基礎(chǔ)上，再用均勻設(shè)計方法，結(jié)合回歸分析數(shù)據(jù)處理方法，綜合考慮膠凝材料各組分對輕骨料混凝土容重及抗壓強(qiáng)度的影響，從而確定了膠凝材料各組分的理想配方。在此基礎(chǔ)上，引入了發(fā)泡劑，減輕了輕骨料混凝土的容重，并進(jìn)一步研究了輕骨料混凝土用作防火門芯板的可行性。 工作過程中，還將頁巖按一定的粒度級配，并裝入陶瓷匣缽中燒成，得到了容重為210kg/m3～280kg/m3的塊狀膨脹頁巖，討論了其用于防火芯板的可行性。 以頁巖陶粒輕骨料及水泥、石膏、粉煤灰等為原料，再配以適當(dāng)外加劑制備的輕骨料混凝土，其性能達(dá)到了國家標(biāo)準(zhǔn)關(guān)于防火門填充材料的要求，可以用作防火門芯板的填充材料。輕骨料混凝土原料豐富，易得，性能優(yōu)良，可為防火門的制造及推廣應(yīng)用提供重要的物質(zhì)保證，對減少火災(zāi)損失，保護(hù)人們生命財產(chǎn)具有很大的意義。
[Abstract]:The fire door is in a certain period of time to meet the fire stability, integrity and is mainly used for building fire zoning insulation requirements of the firewall opening, staircase entrance, evacuation walk, fire pipe wellhead device. The fire door opened, usually can be used for personnel access. When fire occurs, the fire door is closed can be stopped to prevent the combustion flame spread, smoke flow, and play a role in sealing the air supply system is working. Fire door core board filling material is the key to determine the fire door quality. In recent years, high-rise buildings, large shopping malls, hotels, restaurants and the number of cinemas being built, the amount of rapid fire door increased. The high-rise building fire accident occurred, has brought huge losses to people's lives and property. The fire door has become an important barrier to protect the lives and property of people.
Aluminum silicate cotton, wool and glass wool is formerly used for the main filling material fire door core board, dust, the production process of heavy pollution, serious harm to people's health, and will gradually be replaced. The new version of GB12955-2008< new material fire door requirements > filling material must be resistant to fire, environmental protection. Therefore, light, environmental protection, good fire resistance. The new material development imminent fire door core board is filled.
This paper discusses the shale ceramsite made as aggregate, cement, gypsum, fly ash cementitious materials, preparation methods of lightweight aggregate concrete prepared lightweight, environmentally friendly, lightweight aggregate concrete fire door core board refractory. The paper also discusses directly to the expanded shale as raw material, produce the possibility of fire the door core plate block.
This paper studies the Hunan shale in Yiyang material expansion characteristics and sintering system. Through the study on the chemical constituents of shale, analysis of the characteristics of mineral composition and comprehensive thermal analysis, the expansion mechanism of shale, evaluate the feasibility of the lightweight aggregate preparation. The shale fired ceramic sintering temperature, heating rate. The process parameters and other aspects of the holding time. The sintering temperature is 1200 DEG C, the heating rate is 13 DEG /min, the holding time is 20min for the ideal firing system were carried out. The industrial test in Henan and Hunan Qidong ceramic factory, the lightweight aggregate by the Hunan provincial building materials quality inspection station testing, the bulk density grade 400kg/m3, compressive strength is more than 1.0MPa, the softening coefficient is less than 0.8, non radioactive, various performance indicators fully meet the requirements of national standards.
This paper was prepared by the method of grouting filling aggregate each performance index meets the aggregate concrete fire door core board. The first use of pre fixed by other variables, only one factor, gypsum water, study the influence of fly ash on properties of lightweight aggregate concrete. On this basis, the method of uniform design and regression analysis, combined with the data processing method, considering the influence of each component on the cementitious material of lightweight aggregate concrete density and compressive strength, so as to determine the ideal formula of cementitious material components. Based on this, introduced the foaming agent, reduce the bulk density of lightweight aggregate concrete, and further study the feasibility of lightweight aggregate concrete used for fireproof door core board.
In the process of work, will also be according to shale particle gradation, and a ceramic sagger firing obtained, bulk density was 210kg/m3 ~ 280kg/m3 massive shale, the feasibility of fireproof core plate is discussed.
The shale ceramsite lightweight aggregate and cement, gypsum, fly ash and other raw materials, with lightweight aggregate concrete admixture with proper preparation, its performance has reached the requirements of the national standard for fire door packing material, can be used as filling material of fireproof door core board. Lightweight aggregate concrete rich raw materials, excellent performance, easy to get. Can provide important material guarantee for the manufacture and application of fire doors, to reduce the loss of the fire, which is of great significance to protect the life and property of people.

【學(xué)位授予單位】：湖南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU892;TU528

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本文編號：1556946