Effects of Dispersants on Impermeability of Glass Fiber Concrete under Steam Curing

Abstract

Abstract: The dispersion degree of glass fiber in concrete is related to the mechanical properties and impermeability of glass fiber concrete. In this paper, the effects of polymer type hyperdispersant (B193), polyether modified polymer (S-3101B) and sodium carboxymethyl cellulose (CMC) on the microstructure, surface condition, compressive strength, splitting tensile strength and impermeability of glass fiber concrete were investigated. The results show that the three dispersants improve the dispersivity of glass fiber in glass fiber concrete, but the dispersant S-3101B mixed into the concrete causes many pores in the concrete, which reduces the mechanical properties and impermeability of glass fiber concrete. When the dispersant B193 dosage is 0.5% (mass fraction relative to the gel material, the same below), the best impermeability of glass fiber concrete specimens is achieved, and the seepage height is reduced by 16.6%. When the dosage of dispersant CMC is 0.5%, the seepage height is reduced by 7.1%. The relationship curves between seepage height and dispersant dosage of glass fiber concrete mixed with three dispersants are established for engineering design reference.

Key words: concrete, fiberglass, dispersant, steam curing, microstructure, seepage height, predictive model

CLC Number:

TU528

YANG Wenrui, LI Huiying, FENG Zhongmin, WANG Shiyu, TANG Zhiyi. Effects of Dispersants on Impermeability of Glass Fiber Concrete under Steam Curing[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(1): 100-108.

References

[1] 黄安,李北星,杨建波,等.蒸养制度对预制桥面板混凝土强度与抗渗性的影响[J].硅酸盐通报,2021,40(4):1170-1177.
HUANG A, LI B X, YANG J B, et al. Effect of steam curing system on strength and impermeability of precast bridge deck concrete[J]. Bulletin of the Chinese Ceramic Society, 2021, 40(4): 1170-1177 (in Chinese).
[2] 胡少伟,娄本星,尹阳阳,等.蒸养混凝土早期断裂性能研究[J].水利水运工程学报,2020(4):88-95.
HU S W, LOU B X, YIN Y Y, et al. Experimental study on early fracture properties of steam-cured concrete[J]. Hydro-Science and Engineering, 2020(4): 88-95 (in Chinese).
[3] 刘刚,林崇雄,李维洲,等.蒸养条件下大掺量粉煤灰水泥浆体性能研究[J].新型建筑材料,2020,47(8):91-96.
LIU G, LIN C X, LI W Z, et al. Research on the properties of cement slurry with high volume fly ash under steam curing condition[J]. New Building Materials, 2020, 47(8): 91-96 (in Chinese).
[4] WANG M, XIE Y J, LONG G C, et al. The impact mechanical characteristics of steam-cured concrete under different curing temperature conditions[J]. Construction and Building Materials, 2020, 241: 118042.
[5] 孙子豪,赵美程,饶美娟,等.蒸养纤维掺杂高铁低钙水泥混凝土的抗海水冲磨性能研究[J].硅酸盐通报,2019,38(7):2176-2182.
SUN Z H, ZHAO M C, RAO M J, et al. Abrasion resistance performance to seawater of steamed fiber-doped high-ferrite low-calcium cement concrete[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(7): 2176-2182 (in Chinese).
[6] 吕雁.玻璃纤维混凝土弯曲疲劳性能及累积损伤研究[D].昆明:昆明理工大学,2013.
LÜ Y. Study on the flexural fatigue performance and cumulative damage of glass fiber reinforced concrete[D]. Kunming: Kunming University of Science and Technology, 2013 (in Chinese).
[7] 代若愚,程赫明,何天淳,等.玻璃纤维混凝土的力学性能研究[J].昆明冶金高等专科学校学报,2009,25(1):48-51.
DAI R Y, CHENG H M, HE T C, et al. Study of the mechanical properties of GFRC[J]. Journal of Kunming Metallurgy College, 2009, 25(1): 48-51 (in Chinese).
[8] CHEN X F, KOU S C, XING F. Mechanical and durable properties of chopped basalt fiber reinforced recycled aggregate concrete and the mathematical modeling[J]. Construction and Building Materials, 2021, 298: 123901.
[9] CHITHAMBAR G A, RAJESH K K, VINOD K M, et al. Durability studies on the hybrid fiber reinforced geopolymer concrete made of M-sand under ambient curing[J]. IOP Conference Series: Materials Science and Engineering, 2020, 981: 032074.
[10] YUHAZRI M Y, ZULFIKAR A J, GINTING A. Fiber reinforced polymer composite as a strengthening of concrete structures: a review[J]. IOP Conference Series: Materials Science and Engineering, 2020, 1003: 012135.
[11] DAS S, SOBUZ M H R, TAM V W Y, et al. Effects of incorporating hybrid fibres on rheological and mechanical properties of fibre reinforced concrete[J]. Construction and Building Materials, 2020, 262: 120561.
[12] 高妮,温久然.不同聚合物与玻璃纤维复掺砂浆性能的研究[J].混凝土与水泥制品,2020(4):77-80.
GAO N, WEN J R. Study on effect of polymer and glass fiber on the properties of mortar[J]. China Concrete and Cement Products, 2020(4): 77-80 (in Chinese).
[13] 陈清,陈照峰,李承东,等.分散剂对玻璃纤维浆料分散性的影响[J].宇航材料工艺,2014,44(2):29-32+74.
CHEN Q, CHEN Z F, LI C D, et al. Effect of dispersant on dispersion of glass fiber suspension[J]. Aerospace Materials & Technology, 2014, 44(2): 29-32+74 (in Chinese).
[14] 张素风,孙召霞,庞元富.玻璃纤维分散性能的研究[J].中国造纸,2013,32(8):33-36.
ZHANG S F, SUN Z X, PANG Y F. Study of the dispersion properties of glass fibers[J]. China Pulp & Paper, 2013, 32(8): 33-36 (in Chinese).
[15] 时艺娟,张艳,许云志,等.脆性纤维分散混合技术现状研究[J].化工新型材料,2016,44(7):10-11+14.
SHI Y J, ZHANG Y, XU Y Z, et al. Research on the present situation of brittle fiber dispersion mixing technology[J]. New Chemical Materials, 2016, 44(7): 10-11+14 (in Chinese).
[16] 段景宽,姚利辉,程波,等.超支化分散剂对聚丙烯/玻璃纤维/硅灰石复合材料性能的影响[J].塑料科技,2017,45(8):54-58.
DUAN J K, YAO L H, CHENG B, et al. Effect of hyerbranced dispersant on properties of polypropylene/glass fiber/wollastonite composites[J]. Plastics Science and Technology, 2017, 45(8): 54-58 (in Chinese).
[17] IBRAHIM H, BOUKERROU A, HAMMICHE D. Effect of dispersant agent content on the properties of composites based on poly (lactic acid) and alfa fiber[J]. Macromolecular Symposia, 2021, 395(1): 2000266.
[18] 杨元霞,毛起炤,沈大荣,等.碳纤维水泥基复合材料中纤维分散性的研究[J].建筑材料学报,2001,4(1):84-88.
YANG Y X, MAO Q Z, SHEN D R, et al. Study on the dispersion of fiber in carbon fiber cement composites[J]. Journal of Building Materials, 2001, 4(1): 84-88 (in Chinese).
[19] 崔莹,孙玉,吴波,等.分散剂涂覆处理对碳纤维在油性基体中分散性能的影响[J].表面技术,2015,44(1):112-116+126.
CUI Y, SUN Y, WU B, et al. Influence of dispersant coating treatment on the properties of carbon fiber dispersion in oily substrate[J]. Surface Technology, 2015, 44(1): 112-116+126 (in Chinese).
[20] 罗崇禧,陆绍荣,郭栋,等.超分散剂对剑麻纤维/长玻纤/聚丙烯复合材料性能的影响[J].高分子材料科学与工程,2012,28(11):80-83+88.
LUO C X, LU S R, GUO D, et al. Effect of hyperdispersant on properties of SF/LGF/PP composites[J]. Polymer Materials Science & Engineering, 2012, 28(11): 80-83+88 (in Chinese).