稻壳磷建筑石膏抹灰砂浆技术性能研究

材料导报

2022, Vol. 36

Issue (Z1): 21090274-5

无机非金属及其复合材料

稻壳磷建筑石膏抹灰砂浆技术性能研究

成俊辰¹, 赵志曼^1,2, 张晖³, 全思臣⁴, 吴磊¹, 廖仕雄¹

1 昆明理工大学建筑工程学院,昆明 650500
2 昆明理工大学云南省土木工程防灾重点实验室,昆明 650500
3 云南云天化环保科技有限公司,云南安宁 650300
4 云南凝创环保科技有限公司,云南安宁 650300

Study on Technical Performance of Rice Husk Phosphate Building Gypsum Plastering Mortar

CHENG Junchen¹, ZHAO Zhiman^1,2, ZHANG Hui³, QUAN Sichen⁴, WU Lei¹, LIAO Shixiong¹

1 Faculty of Civil Engineering and Architecture, Kunming University of Science and Technology, Kunming 650500, China
2 Yunnan Key Laboratory of Civil Engineering Disaster Prevention, Kunming University of Science and Technology, Kunming 650500, China
3 Yunnan Yuntianhua Environmental Protection Technology Co., Ltd., Anning 650300, Yunnan,China
4 Yunnan Cohesive Innovation Environmental Protection Technology Co., Ltd., Anning 650300, Yunnan,China

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摘要本工作研究了预处理前后的稻壳制成的稻壳磷建筑石膏砂浆的技术性能。将稻壳经洁净水、饱和石灰水、质量分数为2%的NaOH溶液浸泡处理后,来探究稻壳磷建筑石膏砂浆的表观密度、吸水率、分层度、保水性及立方体抗压强度,并通过红外光谱和扫描电镜分析稻壳的官能团变化以及砂浆界面过渡区的性能。结果表明:经洁净水、饱和石灰水处理的稻壳磷建筑石膏砂浆力学强度较未处理的砂浆有显著提升,经2%的NaOH溶液处理的砂浆的力学强度无明显变化。稻壳的红外光谱分析得出碱处理可有效去除稻壳的蜡质层、半纤维素、木质素和SiO₂等组分。另外,界面过渡区分析结果表明,材料表面粗糙度和微裂纹会对表面性质产生影响,使表面结构发生变化,提升抗压强度和拉伸粘结强度。

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	成俊辰
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	廖仕雄

关键词: 磷建筑石膏稻壳砂浆界面过渡区官能团力学性能

Abstract: In this work, the technical properties of rice husk phosphorous building gypsum mortar made from rice husk before and after pretreatment were studied. The rice husk was soaked in clean water, saturated lime water and 2% NaOH solution to explore the apparent density, water absorption, stratification, water retention and cube compressive strength of rice husk phosphorus building gypsum mortar. The functional groups of rice husk and the performance of mortar interface transition zone were analyzed by infrared spectrum and scanning electron microscope. The results show that the mechanical strength of the rice husk phosphorous building gypsum mortar treated with clean water and saturated limestone water is significantly improved compared with the untreated mortar, while the mechanical strength of the mortar treated with 2% NaOH solution has no obvious change. Infrared spectrum analysis of rice husk showed that alkali treatment could effectively remove the wax layer, hemicellulose, lignin and SiO₂ components of rice husk. In addition, the analysis of the interfacial transition zone shows that the surface roughness and microcracks affect the surface properties, which changes the surface force field, and then affects the surface structure and mechanical properties.

Key words: phosphorus building gypsum rice husk mortar interface transition zone functional group mechanical properties

出版日期: 2022-06-05 发布日期: 2022-06-08

ZTFLH:	TQ177.3+7
	TU599

基金资助: 国家自然科学基金(51662022);云南省科技厅工业高新技术专项(202003AA080032);昆明理工大学分析测试基金(2020M20192210088)

通讯作者: lzd2005@126.com

作者简介: 成俊辰,2017年6月毕业于西北民族大学,获得工学学士学位。现为昆明理工大学建筑工程学院硕士研究生,在赵志曼教授的指导下进行研究。目前主要研究领域为新型建筑材料。
赵志曼,昆明理工大学建筑工程学院,教授,硕士研究生导师,博士。2006年11月至2007年11月前往美国华盛顿大学材料科学与工程系作访问学者。主要从事建筑材料领域的研究与教学,重点研究固体废弃物在建筑材料领域的资源化利用。在国内外重要期刊发表文章50余篇,申报或授权实用新型和发明专利30余项。

引用本文:

成俊辰, 赵志曼, 张晖, 全思臣, 吴磊, 廖仕雄. 稻壳磷建筑石膏抹灰砂浆技术性能研究[J]. 材料导报, 2022, 36(Z1): 21090274-5.
CHENG Junchen, ZHAO Zhiman, ZHANG Hui, QUAN Sichen, WU Lei, LIAO Shixiong. Study on Technical Performance of Rice Husk Phosphate Building Gypsum Plastering Mortar. Materials Reports, 2022, 36(Z1): 21090274-5.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2022/V36/IZ1/21090274

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