Li Yubo, Dai Shaobin, Zhang Yichao, Huang Jun, Su Ying, Ma Baoguo
1 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, PR China.
2 School of Civil Engineering and Architecture, Hubei University of Technology, Wuhan, PR China.
J Appl Biomater Funct Mater. 2018 Jan;16(1_suppl):81-92. doi: 10.1177/2280800017751487.
The mass accumulation of phosphogypsum has caused serious environmental pollution, which has become a worldwide problem. Gypsum is a kind of green building material, which is lighter, has better heat and sound insulation performance, and is easier to recycle compared to cement. The application of cast-in-situ phosphogypsum wall could consume a large amount of pollutant, and improve the efficiency of building construction.
The preparation and thermal insulation performance of cast-in-situ phosphogypsum wall were investigated. The property of phosphogypsum-fly ash-lime (PFL) triad cementing materials, the adaptability of retarders and superplasticizers, and the influences of vitrified microsphere as aggregates were explored. Thus, the optimum mix was proposed. Thermal insulation performance tests and ANSYS simulation of this material was carried out.
Optimal structures based on heat channels and the method of calculation determining related parameters were proposed, which achieved a 12.3% reduction in the heat transfer coefficient of the wall.
With good performance, phosphogypsum could be used in cast-in-situ walls. This paper provides the theoretical basis for the preparation and energy-saving application of phosphogypsum in the walls of buildings.
磷石膏的大量堆积造成了严重的环境污染，这已成为一个全球性问题。石膏是一种绿色建筑材料，与水泥相比，它更轻，具有更好的隔热和隔音性能，且更易于回收利用。现浇磷石膏墙体的应用可以消耗大量污染物，并提高建筑施工效率。
对现浇磷石膏墙体的制备及其保温性能进行了研究。探讨了磷石膏-粉煤灰-石灰（PFL）三元胶凝材料的性能、缓凝剂和高效减水剂的适应性以及玻化微珠作为骨料的影响。由此提出了最佳配合比。对该材料进行了保温性能测试和ANSYS模拟。
提出了基于热通道的优化结构及确定相关参数的计算方法，使墙体传热系数降低了12.3%。
磷石膏性能良好，可用于现浇墙体。本文为磷石膏在建筑墙体中的制备及节能应用提供了理论依据。
