發(fā)布時間：2019-05-11 01:28

【摘要】：摘要：本文研究開發(fā)的節(jié)能復(fù)合墻板是一種夾芯復(fù)合墻板,主要是以輕骨料混凝土為面層和以保溫砂漿材料為芯層共同組成。本文主要工作有以下點(diǎn)： (1)通過有限元軟件對結(jié)構(gòu)層薄板進(jìn)行抗彎承載性能模擬分析；研究探討不同構(gòu)造形式下復(fù)合墻板的熱工指標(biāo)變化規(guī)律。確定節(jié)能墻板結(jié)構(gòu)層和保溫層所需要的強(qiáng)度性能指標(biāo)和熱工性能指標(biāo)。 (2)通過正交試驗(yàn)得到全輕混凝土材料最優(yōu)配合比,按照最優(yōu)配合比可以配制配置出強(qiáng)度10.OMpa,導(dǎo)熱系數(shù)為0.303W/(mk)的全輕混凝土材料。 (3)將憎水劑稀釋到質(zhì)量濃度為1%的溶液,按照憎水劑溶液與�；⒅橘|(zhì)量比為1：1的比例對�；⒅檫M(jìn)行噴涂改性處理,用改性后的�；⒅橹苽涑龅娜p混凝土,其28天抗壓強(qiáng)度可以達(dá)到12.8Mpa,導(dǎo)熱系數(shù)為0.302W/(mk)。 (4)對保溫砂漿各成分進(jìn)行單因素實(shí)驗(yàn)分析,得到各組分最優(yōu)摻量。按照最優(yōu)摻量確定的最優(yōu)配合比可以制備出抗壓強(qiáng)度達(dá)到0.68Mpa,導(dǎo)熱系數(shù)達(dá)到0.081W/(mk)的保溫砂漿材料。 (5)應(yīng)用節(jié)能軟件PBECA對長沙普通居民住宅進(jìn)行能耗模擬。按照現(xiàn)在可以做到的圍護(hù)結(jié)構(gòu)水平,在其他條件均相同的情況下,一幢外墻采用200厚節(jié)能復(fù)合墻板住宅與一幢采用傳統(tǒng)的240厚粘土磚住宅相比,可以在此基礎(chǔ)上再節(jié)能23.8%。圖29幅,表31個,參考文獻(xiàn)71篇
[Abstract]:Abstract: the energy-saving composite wallboard studied and developed in this paper is a kind of sandwich composite wallboard, which is mainly composed of lightweight aggregate concrete as surface layer and thermal insulation mortar material as core layer. The main work of this paper is as follows: (1) the bending bearing capacity of structural thin plate is simulated and analyzed by finite element software, and the variation law of thermal index of composite wallboard under different structural forms is studied and discussed. The strength performance index and thermal performance index of energy saving wallboard structure layer and insulation layer are determined. (2) the optimal mix proportion of all light concrete materials can be obtained by orthogonal test. According to the optimal mix proportion, the all light concrete materials with strength of 10.ompa and thermal conductivity of 0.303W/ (mk) can be prepared. (3) the hydrophobic agent was diluted to a solution with a mass concentration of 1%. The vitrified beads were sprayed and modified according to the mass ratio of the hydrophobic agent solution to the vitrified beads, and the all-light concrete was prepared by using the modified vitrified beads. The compressive strength can reach 12.8MPA in 28 days, and the thermal conductivity is 0.302W/ (mk). (4) the single factor experimental analysis of each component of thermal insulation mortar is carried out, and the optimal content of each component is obtained. The thermal insulation mortar material with compressive strength of 0.68 MPA and thermal conductivity of 0.081W/ (mk) can be prepared according to the optimal mixture ratio determined by the optimal content. (5) Energy consumption simulation of Changsha ordinary residential buildings is carried out by using energy saving software PBECA. According to the level of enclosure structure that can now be achieved, under the same other conditions, a 200-thickness energy-saving composite wallboard house is compared with a traditional 240-thickness clay brick house. On this basis, it can save 23.8% energy. Figure 29, table 31, references 71
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU551

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