Effects of Ultrafine Ground Granulated Blast Furnace Slag and Metakaolin on Hydration and Strength of Calcium Sulfoaluminate Cement

Abstract

Abstract: The addition of mineral admixtures is one of the main technical methods to improve the setting and hardening properties of calcium sulfoaluminate cement (CSA) concrete and to reduce the cost of concrete production. The influences of ultrafine ground granulated blast furnace slag (UFS) and metakaolin (MK) on setting time, fluidity, electrical resistivity, and compressive strength of calcium sulfoaluminate cement paste with water-binder ratio of 0.4 were investigated. The hydration products cured at 1 d and 28 d were analyzed by XRD semi-quantitative analysis. The results show that both single and multiple admixtures accelerate the setting of cement paste, but the effect of MK is significant, and the fluidity of cement paste decreases with the increase of UFS and MK. The time for the peak value of electrical resistivity rate changing curve is shortened by adding UFS and MK, and the peak value decreases with the increase of UFS and MK. When the content increases from 0% (mass fraction, the same follows) to 20%, the 28 d compressive strength of the sample with UFS decreases by 24.7%, the 28 d compressive strength of the sample with MK decreases by 17.7%, and the 28 d compressive strength of the sample with both decreases by 17.3%. UFS and MK have no obvious effect on hydration products, but accelerate the early hydration of β-C₂S.

Key words: calcium sulfoaluminate cement, ultrafine ground granulated blast furnace slag, metakaolin, electrical resistivity, hydration product, semi-quantitative analysis

CLC Number:

TU528

LI Yagang, LIAO Yishun, LIU Yanling, HUANG Haoran. Effects of Ultrafine Ground Granulated Blast Furnace Slag and Metakaolin on Hydration and Strength of Calcium Sulfoaluminate Cement[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1586-1593.

References

[1] PARK S M, SEO J H, LEE H K. Thermal evolution of hydrates in carbonation-cured Portland cement[J]. Materials and Structures, 2018, 51(1): 1-8.
[2] JANG J G, KIM G M, KIM H J, et al. Review on recent advances in CO₂ utilization and sequestration technologies in cement-based materials[J]. Construction and Building Materials, 2016, 127: 762-773.
[3] 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.
[4] IOANNOU S, PAINE K, REIG L, et al. Performance characteristics of concrete based on a ternary calcium sulfoaluminate-anhydrite-fly ash cement[J]. Cement and Concrete Composites, 2015, 55: 196-204.
[5] ALLEVI S, MARCHI M, SCOTTI F, et al. Hydration of calcium sulphoaluminate clinker with additions of different calcium sulphate sources[J]. Materials and Structures, 2016, 49(1/2): 453-466.
[6] SHEN Y, CHEN X, ZHANG W, et al. Influence of ternesite on the properties of calcium sulfoaluminate cements blended with fly ash[J]. Construction and Building Materials, 2018, 193: 221-229.
[7] GAO D Y, MENG Y, YANG L, et al. Effect of ground granulated blast furnace slag on the properties of calcium sulfoaluminate cement[J]. Construction and Building Materials, 2019, 227: 116665.
[8] 邢亚兵,王毅,胡凯伟.超细矿渣粉对硅酸盐水泥性能和微观结构的影响[J].材料导报,2017,31(s1):402-405.
XING Y B, WANG Y, HU K W. Properties and microstructure of Portland cement added with ultrafine slag powder[J]. Materials Review, 2017, 31(s1): 402-405 (in Chinese).
[9] MENÉNDEZ G, BONAVETTI V, IRASSAR E F. Strength development of ternary blended cement with limestone filler and blast-furnace slag[J]. Cement and Concrete Composites, 2003, 25(1): 61-67.
[10] 中华人民共和国自然资源部.中国矿产资源报告[M].北京:地质出版社,2019.
Ministry of Natural Resources, PRC. 2019 China mineral resources[M]. Beijing: Geological Publishing House, 2019 (in Chinese).
[11] 彭军芝,桂苗苗,傅翠梨,等.煅烧制度对高岭土的结构特征及胶凝活性的影响[J].建筑材料学报,2011,14(4):482-485.
PENG J Z, GUI M M, FU C L, et al. Effect of calcination regime on microstructure and cementitious activity of Kaolin[J]. Journal of Building Materials, 2011, 14(4): 482-485 (in Chinese).
[12] 莫宗云,刘益良,王大光,等.偏高岭土-水泥基材料力学性能研究进展[J].硅酸盐通报,2018,37(3):911-917.
MO Z Y, LIU Y L, WANG D G, et al. Research progress on the physical properties of cement-based materials blended with metakaolin[J]. Bulletin of the Chinese Ceramic Society, 2018, 37(3): 911-917 (in Chinese).
[13] 白志民,肖仪武.低温煅烧高岭土火山灰活性对水泥石结构的影响[J].硅酸盐学报,2003,31(7):715-720.
BAI Z M, XIAO Y W. Effect of pozzolanic activity of calcined Kaolin on structure of cement mortar[J]. Journal of the Chinese Ceramic Society, 2003, 31(7): 715-720 (in Chinese).
[14] RAMLI M B, ALONGE O R. Characterization of metakaolin and study on early age mechanical strength of hybrid cementitious composites[J]. Construction and Building Materials, 2016, 121: 599-611.
[15] DADSETAN S, BAI J P. Mechanical and microstructural properties of self-compacting concrete blended with metakaolin, ground granulated blast-furnace slag and fly ash[J]. Construction and Building Materials, 2017, 146: 658-667.
[16] RAMEZANIANPOUR A A, BAHRAMI JOVEIN H. Influence of metakaolin as supplementary cementing material on strength and durability of concretes[J]. Construction and Building Materials, 2012, 30: 470-479.
[17] ALVAREZ G L, NAZARI A, BAGHERI A, et al. Microstructure, electrical and mechanical properties of steel fibres reinforced cement mortars with partial metakaolin and limestone addition[J]. Construction and Building Materials, 2017, 135: 8-20.
[18] 庄筱.偏高岭土在混凝土中的应用研究[D].南京:东南大学,2015:26-27.
ZHUANG X. The application of metakaolin in concrete[D]. Nanjing: Southeast University, 2015: 26-27 (in Chinese).
[19] 莫宗云,马腾飞,王大光.偏高岭土活性研究进展[J].硅酸盐通报,2017,36(1):110-115+133.
MO Z Y, MA T F, WANG D G. Research progress on activity of metakaolin[J]. Bulletin of the Chinese Ceramic Society, 2017, 36(1): 110-115+133 (in Chinese).
[20] HE Z, YANG H M, LIU M Y. Hydration mechanism of sulphoaluminate cement[J]. Journal of Wuhan University of Technology-Mater Sci Ed, 2014, 29(1): 70-74.
[21] ARCHIE G E. The electrical resistivity log as an aid in determining some reservoir characteristics[J]. Transactions of the AIME, 1942, 146(1): 54-62.
[22] YEUNG J S K, YAM M C H, WONG Y L. 1-year development trend of concrete compressive strength using calcium sulfoaluminate cement blended with OPC, PFA and GGBS[J]. Construction and Building Materials, 2019, 198: 527-536.
[23] GARCÍA-MATÉ M, DE LA TORRE A G, LEÓN-REINA L, et al. Hydration studies of calcium sulfoaluminate cements blended with fly ash[J]. Cement and Concrete Research, 2013, 54: 12-20.
[24] 廖宜顺,刘楚明,康爽,等.海水环境下矿物掺合料对硫铝酸盐水泥的水化影响[J].硅酸盐通报,2017,36(4):1333-1338.
LIAO Y S, LIU C M, KANG S, et al. Effect of mineral admixtures on the hydration of sulphoaluminate cement under seawater condition[J]. Bulletin of the Chinese Ceramic Society, 2017, 36(4): 1333-1338 (in Chinese).
[25] 马保国,韩磊,朱艳超,等.掺合料对硫铝酸盐水泥性能的影响[J].新型建筑材料,2014,41(9):19-21+50.
MA B G, HAN L, ZHU Y C, et al. Impact of mineral admixture on the performance of sulphate aluminum cement[J]. New Building Materials, 2014, 41(9): 19-21+50 (in Chinese).
[26] 方明晖,钱晓倩,朱蓬莱,等.偏高岭土对羟乙基甲基纤维素改性砂浆性能影响[J].建筑材料学报,2012,15(6):819-824.
FANG M H, QIAN X Q, ZHU P L, et al. Influence of metakaolin on the properties of hydroxyethyl methyl cellulose modified mortar[J]. Journal of Building Materials, 2012, 15(6): 819-824 (in Chinese).
[27] MA R, CHENG X, GONG C C, et al. Effect of different mineral admixtures on properties of sulphoaluminate cement[J]. Applied Mechanics and Materials, 2012, 174/175/176/177: 1173-1176.