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秸稈纖維墻體結構高溫性能和火災溫度場研
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in High Temperature Performance and Fire Temperature Field of Straw Fiber Composite Material
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    摘要:

    以秸稈纖維輕質墻體為研究對象,分析其結構和組成及其對材料高溫性能的影響;通過TG-FTIR分析,研究了高溫作用下的秸稈纖維墻體材料的物理化學變化過程。在上述基礎上,針對該種新型建筑材料進行了燒失量實驗,利用DRS2.6數據回歸分析軟件,建立了火災溫度-燒失量的一元回歸模型。同時,以200mm厚的秸稈纖維外墻保溫板為例,在ISO9705標準火災實驗間對溫度-燒失量回歸模型進行了校驗。結果表明:回歸方程準確可信,可用于火災后各部位的溫度變化情況、起火原因的認定和災后強度評估。

    Abstract:

    Straw fiber wall structure is a new structural system with properties of lightweight and energy-saving, heat preservation and sound isolation. Firstly, the impact of chemical component, structure on basic thermal performance such as activation energy, heat productivity, heat release rate was studied in details. Secondly, the chemicophysics reaction in high temperature were studied through TG-FTIR experiment. Finally, the linear stepwise regression model about fire temperature and loss on ignition was established based on loss on ignition experiment and DRS2.6 software analysis system. Furthermore, a 200mm thickness straw fiber external thermal insulation plate was chosen and burned in independent designed ISO9705 standard fire test room in order to verify the accuracy of the regression model. The results show that the model is correct and can be applied to the real engineering computation and assessment.

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王海蓉,陳振中,梁旭東,李濤,梁棟.秸稈纖維墻體結構高溫性能和火災溫度場研[J].農業(yè)機械學報,2009,40(11):103-108. in High Temperature Performance and Fire Temperature Field of Straw Fiber Composite Material[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(11):103-108.

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