Early Shrinkage Cracking Performance of Aeolian Sand PVA-FRCC Plate in Windy and Hot-Dry Environment

doi:10.16552/j.cnki.issn1001-1625.2025.0173

Abstract

Abstract: To explore the early-age (7 d) restrained shrinkage and cracking performance of polyvinyl alcohol fiber reinforced cementitious composite (PVA-FRCC) plate containing aeolian sand under windy and dry-hot environment in western China, and to promote the engineering application of aeolian sand, thereby reducing the exploitation of natural aggregates, this study was carried out. In this study, the early shrinkage performance of PVA-FRCC plate was studied by taking the aeolian sand replacement rate, fiber volume fraction, water-binder ratio and restrained degree as variables, and the shrinkage estimation model was established. The results show that the restrained shrinkage increases with the increase of aeolian sand replacement rate and water-binder ratio. The incorporation of PVA fiber can not only reduce the restrained shrinkage, but also significantly improve the crack resistance of aeolian sand PVA-FRCC plate. When the aeolian sand replacement rate is higher and the water-binder ratio is slightly larger, the crack resistance grade of aeolian sand PVA-FRCC plate is the highest. From the comprehensive performance of shrinkage performance, mechanical performance, aeolian sand utilization rate and economy, it is better to mix a certain amount of PVA fiber, moderate aeolian sand replacement rate and small water-binder ratio. The internal humidity change of aeolian sand PVA-FRCC plate is divided into three stages, which is highly correlated with the shrinkage change law, reflecting the shrinkage change mechanism. Through theoretical analysis, the early restrained shrinkage estimation model of aeolian sand PVA-FRCC plate is established. The calculated value of the model is in good agreement with the experimental value, which can provide reference for the early shrinkage estimation and crack control of aeolian sand PVA-FRCC plate.

Key words: aeolian sand, PVA-FRCC plate, restrained shrinkage, hot-dry, humidity, crack resistance grade, shrinkage estimation model

CLC Number:

TU528.58

WANG Yuqing, XUE Yanzhao, YUN Zeya, SUN Huajun, LIU Shuguang. Early Shrinkage Cracking Performance of Aeolian Sand PVA-FRCC Plate in Windy and Hot-Dry Environment[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(9): 3207-3217.

References

[1] 王丹, 车佳玲, 舒宏博, 等. 沙漠砂-水泥基材的收缩特性[J]. 材料科学与工程学报, 2021, 39(6): 1021-1027.
WANG D, CHE J L, SHU H B, et al. Shrinkage properties of desert sand cementitious materials[J]. Journal of Materials Science and Engineering, 2021, 39(6): 1021-1027 (in Chinese).
[2] 丁祖德, 文锦诚, 李晓琴, 等. PVA-ECC与既有混凝土黏结面抗渗及劈裂抗拉试验[J]. 建筑材料学报, 2019, 22(3): 356-362.
DING Z D, WEN J C, LI X Q, et al. Impermeability and splitting tensile tests of PVA-ECC and existing concrete bonding interface[J]. Journal of Building Materials, 2019, 22(3): 356-362 (in Chinese).
[3] 徐世烺, 李贺东. 超高韧性水泥基复合材料研究进展及其工程应用[J]. 土木工程学报, 2008, 41(6): 45-60.
XU S L, LI H D. A review on the development of research and application of ultra high toughness cementitious composites[J]. China Civil Engineering Journal, 2008, 41(6): 45-60 (in Chinese).
[4] LEE E, PARK S, KIM Y. Drying shrinkage cracking of concrete using dune sand and crushed sand[J]. Construction and Building Materials, 2016, 126: 517-526.
[5] TEBBAL N, EL ABIDINE RAHMOUNI Z. Influence of local sand on the physicomechanical comportment and durability of high performance concrete[J]. Advances in Civil Engineering, 2016, 2016: 3897064.
[6] 李根峰, 申向东, 吴俊臣, 等. 风积沙混凝土收缩变形的试验研究[J]. 硅酸盐通报, 2016, 35(4): 1213-1218.
LI G F, SHEN X D, WU J C, et al. Experimental study on shrinkage deformation of aeolian sand concrete[J]. Bulletin of the Chinese Ceramic Society, 2016, 35(4): 1213-1218 (in Chinese).
[7] ZHANG J, LI V C. Influences of fibers on drying shrinkage of fiber-reinforced cementitious composite[J]. Journal of Engineering Mechanics, 2001, 127(1): 37-44.
[8] WANG S X, LI V C. Polyvinyl alcohol fiber reinforced engineered cementitious composites material design and performances[C]//Proceedings of Int'l RILEM Workshop on HPFRCC in Structural Applications, 2006: 65-73.
[9] GAO S L, WANG Z, WANG W C, et al. Effect of shrinkage-reducing admixture and expansive agent on mechanical properties and drying shrinkage of Engineered Cementitious Composite (ECC)[J]. Construction and Building Materials, 2018, 179: 172-185.
[10] AKINDAHUNSI A A, FAJOBI A B, AYODELE A L. The effect of polypropylene fibres and coconut coir on restrained shrinkage and compressive strength of concrete[J]. MRS Advances, 2021, 6(14): 378-385.
[11] NASSIF H, HABIB M, OBEIDAH A, et al. Restrained shrinkage of high-performance ready-mix concrete reinforced with low volume fraction of hybrid fibers[J]. Polymers, 2022, 14(22): 4934.
[12] KANAVARIS F, FERREIRA C, SOUSA C, et al. Thermo-chemo-hygro-mechanical simulation of the restrained shrinkage ring test for cement-based materials under distinct drying conditions[J]. Construction and Building Materials, 2021, 294: 123600.
[13] CAO Q, WANG R B, JIA J Q, et al. A comparative study of combined treatments for enhanced early-age cracking control of self-consolidating concrete[J]. Construction and Building Materials, 2020, 248: 118473.
[14] ACI Committee 209. Prediction of creep, shrinkage and temperature effects in concrete structures: ACI 209R—92[S]. Farmington Hills MI: American Concrete Institute, 1997.
[15] International Federation for Structural Concrete. Model code for concrete structures 2010: CEB-FIP 2010[S]. Beijing: China Architecture & Building Press, 2010.
[16] GARDNER N J, LOCKMAN M J. Design provisions for drying shrinkage and creep of normal-strength concrete[J]. ACI Materials Journal, 2001, 98(2): 159-167.
[17] 吴学利. 混凝土强度和干燥收缩预测模型的研究[D]. 北京: 中国建筑科学研究院, 2008.
WU X L. Study on prediction model of concrete strength and drying shrinkage[D]. Beijing: China Academy of Building Research, 2008 (in Chinese).
[18] 王铁梦. 工程结构裂缝控制的综合方法[J]. 施工技术, 2000, 29(5): 5-9.
WANG T M. Comprehensive method for cracking-control in structure[J]. Construction Technology, 2000, 29(5): 5-9 (in Chinese).
[19] 中国工程建设标准化协会. 纤维混凝土试验方法标准: CECS 13—2009[S]. 北京: 中国计划出版社, 2010.
China Association for Engineering Construction Standardization. Standard test methods for fiber reinforced concrete: CECS 13—2009[S]. Beijing: China Planning Press, 2010 (in Chinese).
[20] 中华人民共和国住房和城乡建设部. 建筑砂浆基本性能试验方法标准: JGJ/T 70—2009[S]. 北京: 中国建筑工业出版社, 2009.
Ministry of Housing and Urban-Rural Development of the People's Republic of China. Standard for test method of basic properties of construction mortar: JGJ/T 70—2009[S]. Beijing: China Architecture & Building Press, 2009 (in Chinese).
[21] ZHU L L, ZHENG M L, ZHANG W, et al. Evolution and mechanism on shrinkage of high-performance concrete with full aeolian sand cured by superabsorbent polymer[J]. Construction and Building Materials, 2023, 400: 132846.
[22] 王玉清, 刘潇, 刘曙光. PVA-FRCC收缩性能试验研究[J]. 建筑材料学报, 2020, 23(6): 1289-1296.
WANG Y Q, LIU X, LIU S G. Experimental study on shrinkage behaviors of PVA-FRCC[J]. Journal of Building Materials, 2020, 23(6): 1289-1296 (in Chinese).
[23] 韩宇栋, 张君, 罗孙一鸣. 水胶比和粗骨料体积分数对混凝土内部相对湿度及扩散系数的影响[J]. 建筑材料学报, 2014, 17(2): 193-200+245.
HAN Y D, ZHANG J, LUO S Y M. Effects of water-binder ratio and coarse aggregate volume fraction on internal relative humidity and moisture diffusion coefficient of concrete[J]. Journal of Building Materials, 2014, 17(2): 193-200+245 (in Chinese).
[24] DU J L, WEI X S, TIAN C. The early-age shrinkage cracking and late-age fracture properties of fiber-reinforced cementitious composites[J]. Construction and Building Materials, 2023, 404: 133214.
[25] 李启宏, 侯东伟, 张君. 挤压成型纤维增强水泥砂浆板材的收缩性能[J]. 清华大学学报(自然科学版), 2009(9): 27-30.
LI Q H, HOU D W, ZHANG J. Shrinkage of extruded fiber reinforced cement mortar board[J]. Journal of Tsinghua University (Science and Technology), 2009(9): 27-30 (in Chinese).
[26] 张君, 侯东伟, 高原. 混凝土自收缩与干燥收缩的统一内因[J]. 清华大学学报(自然科学版), 2010, 50(9): 1321-1324.
ZHANG J, HOU D W, GAO Y. Uniform driving force for autogenous and drying shrinkage of concrete[J]. Journal of Tsinghua University (Science and Technology), 2010, 50(9): 1321-1324 (in Chinese).
[27] 李祚, 姚淇耀, 朱圣焱, 等. 乌兰布和沙漠砂制备高延性水泥基复合材料的力学性能[J]. 硅酸盐通报, 2021, 40(4): 1103-1115.
LI Z, YAO Q Y, ZHU S Y, et al. Mechanical properties of engineered cementitious composites prepared with sand in ulanbuh desert[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(4): 1103-1115 (in Chinese).
[28] 王铁梦. 工程结构裂缝控制[M]. 北京: 中国建筑工业出版社, 1997.
WANG T M. Crack control of engineering structures[M]. Beijing: China Architecture & Building Press, 1997 (in Chinese).