Effect of CO2 Curing Pressure on Alkalinity and Mechanical Properties of Vegetated Concrete

Abstract

Abstract: In this paper, the variation laws of alkalinity and mechanical properties of vegetated concrete with CO₂ curing pressure were investigated, and the effect of CO₂ curing pressure on the reaction rate and product generation was discussed by combining X-ray diffraction quantitative phase analysis (XRD-QPA), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The results show that increasing the CO₂ curing pressure can improve the carbonation rate of tricalcium silicate (C₃S), dicalcium silicate (C₂S) and calcium hydroxide (CH). At the same time, the carbonized dense layer can be generated rapidly, which is conducive to delaying the generation and leaching of CH. The calcium carbonate (CaCO₃) and hydrated calcium silicate (C-S-H) gel generated by the carbonation reaction increase the cement stone compactness and effectively improve the compressive strength of vegetated concrete. Compared with normal pressure CO₂ curing, the 3 d compressive strength of vegetated concrete cured under CO₂ curing pressure of 0.3 MPa for 1 h increases by 72.8%, the 28 d compressive strength increases by 4.8%, and the 28 d pH value decreases from 11.4 to 8.2. Moderately increasing the CO₂ curing pressure is effective in reducing the alkalinity and increasing the strength of vegetated concrete.

Key words: vegetated concrete, alkalinity reduction, CO₂ curing pressure, carbonaized dense layer, compressive strength

CLC Number:

TU528

ZHANG Rui, YANG Dawei, WU Ke, WANG Yuefeng, CHEN Xiaoqiang, LIU Laibao, ZHANG Lihua, LIU Chuanbei, GU Tao. Effect of CO₂ Curing Pressure on Alkalinity and Mechanical Properties of Vegetated Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(10): 3499-3507.

References

[1] 王俊岭, 王雪明, 冯萃敏, 等. 植生混凝土的研究进展[J]. 硅酸盐通报, 2015, 34(7): 1915-1920.
WANG J L, WANG X M, FENG C M, et al. Research progress on the planting eco-concrete[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(7): 1915-1920 (in Chinese).
[2] 乔建刚, 董进国, 李明浩, 等. 生态混凝土植生与抗冲刷性能研究[J]. 硅酸盐通报, 2023, 42(3): 917-924.
QIAO J G, DONG J G, LI M H, et al. Study on planting performance and scouring resistance of eco-concrete[J]. Bulletin of the Chinese Ceramic Society, 2023, 42(3): 917-924 (in Chinese).
[3] TANG W, MOHSENI E, WANG Z Y. Development of vegetation concrete technology for slope protection and greening[J]. Construction and Building Materials, 2018, 179: 605-613.
[4] CALVO J L G, HIDALGO A, ALONSO C, et al. Development of low-pH cementitious materials for HLRW repositories[J]. Cement and Concrete Research, 2010, 40(8): 1290-1297.
[5] FAIZ H, NG S, RAHMAN M. A state-of-the-art review on the advancement of sustainable vegetation concrete in slope stability[J]. Construction and Building Materials, 2022, 326: 126502.
[6] KONG J F, WANG Z H, MENG X B, et al. Study on alkali reduction treatments and plant growth properties of planting concrete[J]. Sustainability, 2022, 14(19): 12228.
[7] GANAPATHY G P, ALAGU A, RAMACHANDRAN S, et al. Effects of fly ash and silica fume on alkalinity, strength and planting characteristics of vegetation porous concrete[J]. Journal of Materials Research and Technology, 2023, 24: 5347-5360.
[8] BAO X H, LIAO W Y, DONG Z J, et al. Development of vegetation-pervious concrete in grid beam system for soil slope protection[J]. Materials, 2017, 10(2): 96.
[9] LEE K H, YANG K H. Development of a neutral cementitious material to promote vegetation concrete[J]. Construction and Building Materials, 2016, 127: 442-449.
[10] GONG C C, ZHOU X M, DAI W Y, et al. Effects of carbamide on fluidity and setting time of sulphoaluminate cement and properties of planting concrete from sulphoaluminate cement[J]. Construction and Building Materials, 2018, 182: 290-297.
[11] 杨永民, 何永刚, 刘晓飞, 等. 多孔生态混凝土孔隙水环境碱性降低措施研究[J]. 广东水利水电, 2018(11): 106-109.
YANG Y M, HE Y G, LIU X F, et al. Study on alkaline reduction measures of pore water environment in porous ecological concrete[J]. Guangdong Water Resources and Hydropower, 2018(11): 106-109 (in Chinese).
[12] 丁向群, 尹思安, 孙畅, 等. 超细矿粉对植生再生混凝土抗压强度及pH值的影响[J]. 硅酸盐通报, 2019, 38(5): 1545-1549.
DING X Q, YIN S A, SUN C, et al. Effect of ultrafine slag powder on compressive strength and pH value of vegetation recycled aggregate concrete[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(5): 1545-1549 (in Chinese).
[13] 许颖, 李伟文, 张威凯, 等. 再生骨料在护坡用植生混凝土的应用及优化研究[J]. 硅酸盐通报, 2019, 38(10): 3229-3236.
XU Y, LI W W, ZHANG W K, et al. Application and optimization of ecological concrete made with recycled aggregate for slope protection[J]. Bulletin of the Chinese Ceramic Society, 2019, 38(10): 3229-3236 (in Chinese).
[14] 王志鹏, 张伟锋, 韦未, 等. 硅烷浸渍对大孔隙生态混凝土的降碱效果研究[J]. 混凝土, 2019(3): 157-160.
WANG Z P, ZHANG W F, WEI W, et al. Study on the effect of silane soakage technique on the alkali reduction of macroporous ecological concrete[J]. Concrete, 2019(3): 157-160 (in Chinese).
[15] 史才军, 王吉云, 涂贞军, 等. CO₂养护混凝土技术研究进展[J]. 材料导报, 2017, 31(5): 134-138.
SHI C J, WANG J Y, TU Z J, et al. Progresses in CO₂ curing of concrete[J]. Materials Review, 2017, 31(5): 134-138 (in Chinese).
[16] LI L, WU M. An overview of utilizing CO₂ for accelerated carbonation treatment in the concrete industry[J]. Journal of CO₂ Utilization, 2022, 60: 102000.
[17] 李晟, 尹健, 张贵, 等. 绿色生态混凝土碳化降碱技术研究[J]. 湘潭大学自然科学学报, 2017, 39(2): 33-37.
LI S, YIN J, ZHANG G, et al. Research on alkalinity reduction of green eco-concrete by carbonization[J]. Natural Science Journal of Xiangtan University, 2017, 39(2): 33-37 (in Chinese).
[18] LI S, YIN J, ZHANG G. Experimental investigation on optimization of vegetation performance of porous sea sand concrete mixtures by pH adjustment[J]. Construction and Building Materials, 2020, 249: 118775.
[19] 廖文宇, 石宪, 黄泽峰, 等. 植生混凝土的降碱技术及种植效果研究[J]. 混凝土, 2013(7): 155-158.
LIAO W Y, SHI X, HUANG Z F, et al. Study on decreasing alkalinity of planting concrete and the resulting planting effect[J]. Concrete, 2013(7): 155-158 (in Chinese).
[20] XUE K W, WAN C J, XU Y W, et al. Effect of pre-hydration age on phase assemblage, microstructure and compressive strength of CO₂ cured cement mortar[J]. Construction and Building Materials, 2022, 325: 126760.
[21] LIU R Q, YANG Y Q, ZHAO X K, et al. Quantitative phase analysis and microstructural characterization of Portland cement blends with diatomite waste using the Rietveld method[J]. Journal of Materials Science, 2021, 56(2): 1242-1254.
[22] SHAO Y X, ROSTAMI V, HE Z, et al. Accelerated carbonation of Portland limestone cement[J]. Journal of Materials in Civil Engineering, 2014, 26(1): 117-124.
[23] HU L L, JIA Y S, CHEN Z, et al. An insight of carbonation-hydration kinetics and microstructure characterization of cement paste under accelerated carbonation at early age[J]. Cement and Concrete Composites, 2022, 134: 104763.
[24] CHANG J, FANG Y F, SHANG X P. The role of β-C₂S and γ-C₂S in carbon capture and strength development[J]. Materials and Structures, 2016, 49(10): 4417-4424.
[25] MONKMAN S, SARGAM Y, NABOKA O, et al. Early age impacts of CO₂ activation on the tricalcium silicate and cement systems[J]. Journal of CO2 Utilization, 2022, 65: 102254.
[26] ROSTAMI V, SHAO Y X, BOYD A J, et al. Microstructure of cement paste subject to early carbonation curing[J]. Cement and Concrete Research, 2012, 42(1): 186-193.
[27] HE P P, SHI C J, TU Z J, et al. Effect of further water curing on compressive strength and microstructure of CO₂-cured concrete[J]. Cement and Concrete Composites, 2016, 72: 80-88.
[28] LIU M, HONG S X, WANG Y S, et al. Compositions and microstructures of hardened cement paste with carbonation curing and further water curing[J]. Construction and Building Materials, 2021, 267: 121724.
[29] MU Y D, LIU Z C, WANG F Z, et al. Carbonation characteristics of γ-dicalcium silicate for low-carbon building material[J]. Construction and Building Materials, 2018, 177: 322-331.
[30] SHTEPENKO O, HILLS C, BROUGH A, et al. The effect of carbon dioxide on β-dicalcium silicate and Portland cement[J]. Chemical Engineering Journal, 2006, 118(1/2): 107-118.

Effect of CO₂ Curing Pressure on Alkalinity and Mechanical Properties of Vegetated Concrete

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