半水磷石膏固化原状磷石膏制备胶凝材料及性能研究

doi:10.19964/j.issn.1006-4990.2021-0530

Abstract

Abstract:

Using raw phosphogypsum（RPG） as the base material，the influence law and action mechanism of the relative content of raw phosphogypsum（RPG） and β-hemihydrate phosphogypsum（HPG） and the three admixtures of quicklime，cement and silica fume on the compressive strength，flexural strength and softening coefficient of phosphogypsum?based composite cementitious materials（PGBM） were studied by single factor experiment.The results showed that the increase of the relative content of HPG，quicklime，cement and silica fume could effectively increase the strength and softening coefficient of PGBM，and silica fume had the most obvious effect.However，when the content of quicklime and cement（calculated by mass fraction） was greater than 4% and 6%，the water resistance of PGBM was not improved significantly.When the mass fraction radio of RPG and HPG was 7∶3，and the content of quicklime，cement and silica fume（calculated by mass fraction） were 4%，12% and 5% respectively，the 28 d compressive strength and softening coefficient of the specimen could reach 26.29 MPa and 0.79 respectively.The microscopic analysis showed that each admixture mainly affected the contact strength between the RPG particles through the filling rate of the hydration product，which in turn affected the strength and water resistance of the PGBM.

Key words: phosphogypsum, cementitious materials, compressive strength, softening coefficient, scanning electron microscope

CLC Number:

TQ177.375

FU Rusong,LU Yuexian,AN Hongfang,KONG Dewen,FU Rubin. Study on preparation of cementitious materials from raw phosphogypsum cured by hemihydrate phosphogypsum and their properties[J]. Inorganic Chemicals Industry, 2022, 54(6): 109-114.

Figures/Tables 7

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Table 1

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References 17

1	尹明干，汪晖，石飞停.改性磷石膏的强度与孔结构的研究［J］.材料导报，2018，32（S2）：526-529.
	YIN Minggan， WANG Hui， SHI Feiting.Mechanical strength and pore structure analysis of modified phosphogypsum［J］.Materials Review，2018，32（S2）：526-529.
2	饶轶晟，王凤霞.磷石膏资源化利用途径及展望［J］.化工矿物与加工，2020，49（8）：30-33.
	RAO Yisheng， WANG Fengxia.Utilization of phosphogypsum as resource and its prospect［J］.Industrial Minerals & Processing，2020，49（8）：30-33.
3	石鑫，杨绍利，马兰.“三石膏”综合利用现状及其新工艺［J］.现代化工，2020，40（9）：8-13，19.
	SHI Xin， YANG Shaoli， MA Lan.Present situation of comprehensive utilization of “three⁃gypsum” and new technologies［J］.Modern Chemical Industry，2020，40（9）：8-13，19.
4	袁书成，刘香玲，梁危，等.磷石膏填充墙研究现状与应用进展［J］.无机盐工业，2021，53（4）：8-13.
	YUAN Shucheng， LIU Xiangling， LIANG Wei，et al.Research status and application progress of phosphogypsum infilled walls［J］.Inorganic Chemicals Industry，2021，53（4）：8-13.
5	孙潇潇.煅烧磷石膏—矿渣—碱性激发剂胶凝材料的性能研究［D］.郑州：郑州大学，2020.
	SUN Xiaoxiao.Study on the properties of calcined phosphogypsum⁃
	slagalkaline activator cementitious material［D］.Zhengzhou：Zheng
	zhou University，2020.
6	赵风文，胡建华，曾平平，等.基于正交试验的碱基-磷石膏胶结充填体配比优化［J］.中国有色金属学报，2021，31（4）：1096-1105.
	ZHAO Fengwen， HU Jianhua， ZENG Pingping，et al.Optimization research of base⁃phosphogypsum cemented backfill ratio based on orthogonal test［J］.The Chinese Journal of Nonferrous Metals，2021，
	31（4）：1096-1105.
7	魏兴，郑光亚，何宣志，等.磷石膏复合胶凝材料的制备及胶结过程研究［J］.现代化工，2021，41（9）：101-106.
	WEI Xing， ZHENG Guangya， HE Xuanzhi，et al.Preparation and cementation process of phosphogypsum composite cementing material［J］.Modern Chemical Industry，2021，41（9）：101-106.
8	李宏业，杨晓炳，温震江，等.磷石膏—矿渣复合胶凝材料配比优化试验［J］.金属矿山，2021（3）：28-33.
	LI Hongye， YANG Xiaobing， WEN Zhenjiang，et al.Optimization test of the proportion of phosphogypsum⁃slag composite cementitious material［J］.Metal Mine，2021（3）：28-33.
9	吴照洋，张永兴，张利珍，等.磷石膏一步法制备β型建筑石膏粉试验研究［J］.化工矿物与加工，2021，50（6）：36-40.
	WU Zhaoyang， ZHANG Yongxing， ZHANG Lizhen，et al.Experimental study on preparation of β-building gypsum powder with phosphogypsum by one⁃step method［J］.Industrial Minerals & Processing，2021，50（6）：36-40.
10	郑绍聪，余强，宁平，等.磷石膏制备β半水石膏粉的研究［J］.现代化工，2015，35（5）：60-63，65.
	ZHENG Shaocong， YU Qiang， NING Ping，et al.Preparation of β-hemihydrate gypsum with phosphogypsum［J］.Modern Chemical Industry，2015，35（5）：60-63，65.
11	CHEN Xuemei， GAO Jianming， ZHAO Yasong.Investigation on the doi: 10.1016/j.conbuildmat.2019.116864
	hydration of hemihydrate phosphogypsum after post treatment［J］.Construction and Building Materials，2019，229.Doi：10.1016/j.conbuildmat.2019.116864 . doi: 10.1016/j.conbuildmat.2019.116864
12	姜关照，吴爱祥，王贻明，等.生石灰对半水磷石膏充填胶凝材料性能影响［J］.硅酸盐学报，2020，48（1）：86-93.
	JIANG Guanzhao， WU Aixiang， WANG Yiming，et al.Effect of lime on properties of filling cementitious material prepared by hemihydrate phosphogypsum［J］.Journal of the Chinese Ceramic Society，2020，48（1）：86-93.
13	兰文涛，吴爱祥，王贻明，等.半水磷石膏充填强度影响因素试验［J］.哈尔滨工业大学学报，2019，51（8）：128-135.
	LAN Wentao， WU Aixiang， WANG Yiming，et al.Experimental study on influencing factors of the filling strength of hemihydrate phosphogypsum［J］.Journal of Harbin Institute of Technology，2019，51（8）：128-135.
14	齐兆军，刘树龙，孙业庚，等.新型充填胶凝材料影响因素分析及配比优化［J］.矿业研究与开发，2021，41（2）：114-118.
	QI Zhaojun， LIU Shulong， SUN Yegeng，et al.Analysis on influencing factors and proportion optimization of new filling cementing materials［J］.Mining Research and Development，2021，41（2）：114-118.
15	杨艳娟，王今华，白召军，等.双掺粉煤灰和硅灰透水混凝土的试验研究［J］.新型建筑材料，2021，48（2）：78-80.
	YANG Yanjuan， WANG Jinhua， BAI Zhaojun，et al.Experimental study on permeable concrete mixed with fly ash and silica fume［J］.New Building Materials，2021，48（2）：78-80.
16	王红珊，王海龙，孙松，等.硅粉对轻骨料混凝土力学性能及孔隙结构的影响［J］.中国科技论文，2019，14（4）：458-463.
	WANG Hongshan， WANG Hailong， SUN Song，et al.Effect of silicon powder on mechanical properties and pore structure of lightweight aggregate concrete［J］.China Sciencepaper，2019，14（4）：458-463.
17	张雄，张恒，张晓乐，等.硅灰调控混凝土力学性能的关键界面参数研究［J］.建筑材料学报，2019，22（4）：626-631.
	ZHANG Xiong， ZHANG Heng， ZHANG Xiaole，et al.Key interface parameters for the control of silica fume on mechanical properties of concrete［J］.Journal of Building Materials，2019，22（4）：626-631.

项目	主要成分质量分数/%
项目	SO₃	CaO	SiO₂	P₂O₅	F	Fe₂O₃	Al₂O₃	MgO	K₂O	SrO
RPG	55.28	39.52	2.68	0.89	0.65	0.37	0.30	—	0.07	0.06
HPG	53.60	41.84	2.71	0.86	—	0.38	0.29	—	0.07	0.06
水泥	3.96	61.71	19.90	0.17	—	4.46	5.16	1.73	—	0.16
硅灰	0.46	0.48	97.60	0.04	—	0.07	0.81	0.21	—	—
生石灰	0.24	98.29	0.60	0.01	—	0.11	—	0.58	—	0.01

w（RPG）∶w（HPG）	生石灰掺量/%	水泥掺量/%	硅灰掺量/%	水灰质量比
100∶0，90∶10， 80∶20，70∶30， 60∶40，50∶50	—	—	—	0.23
70∶30	0，2，4，6， 8，10	—	—	0.23
70∶30	4	0，6，9，12， 15，18	—	0.23
70∶30	4	12	0，1，3， 5，7，9	0.23

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Study on preparation of cementitious materials from raw phosphogypsum cured by hemihydrate phosphogypsum and their properties

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