|Table of Contents|

Preparation and properties of alkali-activated solid waste road reinforcement material(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2022年3期
Page:
99-111
Research Field:
道路工程(道路交通功能材料专刊)
Publishing date:

Info

Title:
Preparation and properties of alkali-activated solid waste road reinforcement material
Author(s):
JI Xin1;  WANG Zhen-jun1;  ZHAO Xin2;  YU Zhen-fa1;  WANG Xiao-feng3;  XU Meng-da1
(1. School of Material Science and Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. Shaanxi Provincial Communications Planning & Design Institute Co., Ltd., Xi'an 710065, Shaanxi, China; 3. Henan Provincial Communications Planning &a
Keywords:
road engineering;  road reinforcement material;  alkali activation;  industrial waste residue;  road performance;  blast furnace slag;  steel slag
PACS:
U414
DOI:
10.19721/j.cnki.1671-8879.2022.03.010
Abstract:
Aimed at the problems that traditional inorganic road reinforcement materials exist expensive, carbon emissions and energy consumption, and the argently need-development of new green road reinforcement materials. The synergistic effects arising from the performance aspects of alkali-excited solid waste reinforcing materials were investigated. The possibility of preparing inorganic pavement repair materials together with blast furnace slag(BFS)and steel slag(SS)micronized powder as a composite powder was explored, water glass and sodium hydroxide as excitants and low calcium fly ash(FA)were used as the base powder. Effects of composite powder content(mass fraction, the same below)of 50% and 70% on setting time, flow, viscosity, compressive strength and flexural strength of standard cured paste samples were studied through laboratory experiments. In addition, X-ray diffraction, scanning electron microscopy and infrared spectroscopy were used to analyze gel product, microstructure and bonding type of hardened paste. The results show that compared with pure cement paste, the setting time of FA-based paste is significantly increased at each ratio. SS improves the flow of paste, but too much BFS can affect flow due to the increase of early hydration products. The viscosity of composite paste has a strong correlation with flow property. In terms of mechanical properties, BFS plays a decisive role in early strength of hardened paste. Although the activity of SS is low, it plays a physical filling effect. When the content of SS is 10%, the mechanical properties of hardened paste are optimal. The chemical effect of SS in hydration process is less than that of BFS and FA. The strength of paste decreases as the content of SS increases and content of BFS decreases, but the degree of reaction of SS in the later stage is higher. The surface of hardened paste with high SS content is loose and the pore structure is large, while the surface of paste with high content of BFS is dense and uniform. The plate-like and three-dimensional network gel product filled pores, and promotes the formation of dense microstructure.5 tabs, 11 figs, 31 refs.

References:

[1] JUENGER M C G,WINNEFELD F,PROVIS J L,et al.Advances in alternative cementitious binders[J].Cement and Concrete Research,2011,41(12):1232-1243.
[2]PROVIS J L,PALOMO A,SHI C J.Advances in understanding alkali-activated materials[J].Cement and Concrete Research,2015,78:110-125.
[3]SINGH B,ISHWARYA G,GUPTA M,et al.Geopolymer concrete:A review of some recent developments[J].Construction and Building Materials,2015,85:78-90.
[4]PROVIS J L.Alkali-activated materials[J].Cement and Concrete Research,2018,114:40-48.
[5]ZHANG Z H,LI L F,MA X,et al.Compositional,microstructural and mechanical properties of ambient condition cured alkali-activated cement[J].Construction and Building Materials,2016,113:237-245.
[6]PULIGILLA S,MONDAL P.Role of slag in microstructural development and hardening of fly ash-slag geopolymer[J].Cement and Concrete Research,2013,43:70-80.
[7]王红喜.高性能水玻璃悬浊型双液灌浆材料研究与应用[D].武汉:武汉理工大学,2007.
WANG Hong-xi.Research and application of high performance sodium silicate suspended two-liquid grouting material[D].Wuhan:Wuhan University of Technology,2007.
[8]李会安.非开挖式地聚合物注浆技术研究与应用[D].西安:长安大学,2015.
LI Hui-an.Study and application on the technology of trencheless geopolymer grouting[D].Xi'an:Chang'an University,2015.
[9]陈 伟,金 浪,范剑锋,等.VAE乳液缓凝碱激发胶凝材料水化机理研究[J].硅酸盐通报,2016,35(6):1682-1687.
CHEN Wei,JIN Lang,FAN Jian-feng,et al.Hydration mechanism of alkali activated binder retarded with VAE emulsion[J].Bulletin of the Chinese Ceramic Society,2016,35(6):1682-1687.
[10]AL-MAJIDI M H,LAMPROPOULOS A,CUNDY A,et al.Development of geopolymer mortar under ambient temperature for in situ applications[J].Construction and Building Materials,2016,120:198-211.
[11]樊晓丹,李玉祥,王少剑,等.碱激发超细矿渣粉制备灌浆料的缓凝问题研究[J].混凝土,2014(10):81-85.
FAN Xiao-dan,LI Yu-xiang,WANG Shao-jian,et al.Study on retardation of preparing grouting material by alkali-activated fine slag powder[J].Concrete,2014(10):81-85.
[12]徐建军,吴开胜,赵大军.用于道路修复加固的地聚合物注浆材料的研制[J].新型建筑材料,2016,43(3):26-28.
XU Jian-jun,WU Kai-sheng,ZHAO Da-jun.Development of geopolymer grouting material for road repair and reinforcement[J].New Building Materials,2016,43(3):26-28.
[13]林有贵,栗 晖,易 强,等.在役沥青路面基层地聚物注浆补强技术研究[J].中外公路,2020,40(2):46-52.
LIN You-gui,LI Hui,YI Qiang,et al.Research on reinforcement technology of existing asphalt pavement subbase using geopolymer grouting[J].Journal of China & Foreign Highway,2020,40(2):46-52.
[14]ALREFAEI Y,WANG Y S,DAI J G.Effect of mixing method on the performance of alkali-activated fly ash/slag pastes along with polycarboxylate admixture[J].Cement and Concrete Composites,2021,117:103917.
[15]NEDELJKOVIC M,LUKOVIC M,VAN BREUGEL K,et al.Development and application of an environmentally friendly ductile alkali-activated composite[J].Journal of Cleaner Production,2018,180:524-538.
[16]WANG Q,YAN P Y,FENG J W.A discussion on improving hydration activity of steel slag by altering its mineral compositions[J].Journal of Hazardous Materials,2011,186(2/3):1070-1075.
[17]冀 欣,盛燕萍,路再红,等.掺加钢渣的半刚性基层材料性能[J].长安大学学报(自然科学版),2021,41(4):21-31.
JI Xin,SHENG Yan-ping,LU Zai-hong,et al.Properties of semi-rigid base material with steel slag[J].Journal of Chang'an University(Natural Science Edition),2021,41(4):21-31.
[18]WANG Q,YAN P Y,MI G D.Effect of blended steel slag-GBFS mineral admixture on hydration and strength of cement[J].Construction and Building Materials,2012,35:8-14.
[19]SONG W L,ZHU Z D,PENG Y Y,et al.Effect of steel slag on fresh,hardened and microstructural properties of high-calcium fly ash based geopolymers at standard curing condition[J].Construction and Building Materials,2019,229:116933.
[20]张义顺,吴 杰,郭乾坤,等.钢渣双液注浆材料的研究[J].河南理工大学学报(自然科学版),2011,30(3):346-349.
ZHANG Yi-shun,WU Jie,GUO Qian-kun,et al.Research on dual fluid grouting material with steel slag[J].Journal of Henan Polytechnic University(Natural Science),2011,30(3):346-349.
[21]徐 行,赵 文,李慎刚,等.复掺钢渣与矿渣的水泥-水玻璃双液注浆材料研究[J].隧道建设(中英文),2018,38(2):255-259.
XU Hang,ZHAO Wen,LI Shen-gang,et al.Study of cement-water glass double-liquid grouting material with steel slag and ground slag[J].Tunnel Construction,2018,38(2):255-259.
[22]SONG W L,ZHU Z D,PU S Y,et al.Efficient use of steel slag in alkali-activated fly ash-steel slag-ground granulated blast furnace slag ternary blends[J].Construction and Building Materials,2020,259:119814.
[23]HOJATI M,RADLINSKA A.Shrinkage and strength development of alkali-activated fly ash-slag binary cements[J].Construction and Building Materials,2017,150:808-816.
[24]WANG Q,YAN P Y.Hydration properties of basic oxygen furnace steel slag[J].Construction and Building Materials,2010,24(7):1134-1140.
[25]BERNAL S A,PROVIS J L,WALKLEY B,et al.Gel nanostructure in alkali-activated binders based on slag and fly ash,and effects of accelerated carbonation[J].Cement and Concrete Research,2013,53:127-144.
[26]FERNANDEZ-JIMANEZ A,PALOMO A,CRIADO M.Microstructure development of alkali-activated fly ash cement:A descriptive model[J].Cement and Concrete Research,2005,35(6):1204-1209.
[27]THOMAS J J,JENNINGS H M,CHEN J J.Influence of nucleation seeding on the hydration mechanisms of tricalcium silicate and cement[J].The Journal of Physical Chemistry C,2009,113(11):4327-4334.
[28]KADRI E H,AGGOUN S,DE SCHUTTER G,et al.Combined effect of chemical nature and fineness of mineral powders on Portland cement hydration[J].Materials and Structures,2010,43(5):665-673.
[29]BENTZ D P.Influence of water-to-cement ratio on hydration kinetics:Simple models based on spatial considerations[J].Cement and Concrete Research,2006,36(2):238-244.
[30]LAM L,WONG Y L,POON C S.Degree of hydration and gel/space ratio of high-volume fly ash/cement systems[J].Cement and Concrete Research,2000,30(5):747-756.
[31]ZHUANG S Y,WANG Q.Inhibition mechanisms of steel slag on the early-age hydration of cement[J].Cement and Concrete Research,2021,140:106283.

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Last Update: 2022-07-01