Abstract
As a new green and environmental material, bio-activated cementitious material is attracting extensive attention. This study confirmed that the bio-activated cementitious material could mineralize and cement fugitive dust into the calcite- consolidation-layer based on CO2 capture and utilization. The results illustrated that treatment processes (non-pressure spraying, pressure spraying, non-pressure blending and pressure blending) had a strong effect on the microstructure and properties of calcite-consolidation-layer. According to the analysis of X-ray diffraction (XRD) and Fourier transform infrared (FTIR), calcite was prepared by bio-activated cementitious material during the cementation process. Meanwhile, scanning electron microscopy (SEM) and thermogravimetric-differential scanning calorimetry (TG-DSC) were adopted to measure the corresponding variation of porous characteristics and calcite content caused by different treatment processes. The results indicated that the microstructure of calcite-consolidation-layer from the spraying process had lower porosity and higher content of calcite than from blending processes. In addition, the mechanical properties of calcite-consolidation-layer were also tested. The hardness and compressive strength, which reached 19.5 GPa and 0.6 MPa, respectively, of calcite-consolidation-layer from the pressure spraying process were higher than those from the other three treatment processes. Compared with the non-treatment process, the four treatment processes had superior wind erosion resistance. Under the wind speed of 12 m/s, the mass loss of calcite-consolidation-layer from the pressure spraying process decreased from 2150.2 to 23.8 g/(m2 h).
Similar content being viewed by others
References
Zhang Z H, Wu F. Health impairment due to building construction dust pollution. J Tsinghua Univ (Sci &Tech), 2008, 48: 922–925
Zhao P H, Feng Y C, Jin J, et al. Characteristics and control indicators of fugitive dust from building construction sites. Acta Scientiae Circumstantiae, 2009, 29: 1618–1623
Ma Q, Wang M. Preparation and research on dust suppressant in construction site. Indust Saf Environ Protect, 2014, 40: 61–63
Chen L, Han T T, Li T, et al. Estimation of the effect derived from wind erosion of soil and dust emission in tianjin suburbs on the central district based on WEPS model. Chin J Environ Sci, 2012, 33: 2197–2203
He J J, Cai Q G, Tang Z J. Wind tunnel experimental study on soil wind erosion control with PAM. J Soil Water Conserv, 2007, 21: 12–15
Xu X Y, Tang J N, Jin H X, et al. Study on sand-fixing benefits of three new-type chemical sand-fixing materials. J Soil Water Conserv, 2005, 19: 62–65
Han F, Zhu J M, Jin L Z. Research about the capability of new dust suppression medicament. Saf Environ Eng, 2003, 10: 31–33
Wang Y M, Han W F, Chen W W. Analysis of chemical sand-fixing materials for sand fixation in arid desert area. Chin J Geological Hazard Contr, 2004, 15: 78–81
Zhang H J, Liu F, Zhang X K, et al. The overview of road dust suppression agent. Sci Tech Labour Prot, 2000, 6: 40–42
Zhou Y F. Effect of construction activities on particulate matter pollution along roadways. J Southwest Agr Univ, 2004, 4: 518–520
Zhao X Y, Cheng S Y, Tian G, et al. Construction fugitive dust pollution and control in beijing. J Beijing Univ Tech, 2007, 10: 1086–1090
Bai X B, Liu J, Yan Y T, et al. Fugitive dust pollution of city and situation and prospect of study on dust-depressor. J Shaanxi Univ Tech, 2005, 21: 43–46.
Peng X L, Wu C. Progress of chemical dust suppressants and their application. J Saf Sci Tech, 2005, 1: 44–47
Zhang W A, Huo L X, Liu H L, et al. Study on preparation and properties of complex coal dust inhibitor. Coal Chem Indust, 2009, 5: 21–24
Amato F, Querol X, Johansson C, et al. A review on the effectiveness of street sweeping, washing and dust suppressants as urban PM control methods. Sci Total Environ, 2010, 408: 3070–3084
Copeland C R, Eisele T C, Kawatra S K. Suppression of airborne particulates in iron ore processing facilities. Int J Miner Process, 2009, 93: 232–238
Karin E, Rolf M. Impact of fine materials content on the transport of dust suppressants in gravel road wearing courses. J Mater Civil Eng, 2011, 23: 1163–1170
Medeiros M A, Leite C M M, Lago R M. Use of glycerol by-product of biodiesel to produce an efficient dust suppressant. Chem Eng J, 2012, 180: 364–369
Jin L Z, Yang J X, Ou S N. Experimental study of wetting chemical dust-depressor. J Saf Environ, 2007, 7: 109–112
Tan Z Y, Liu W J, Zhao X G, et al. Selection principle and experimental simulation of ecotype dust suppressor. Acta Scientiae Circumstantiae, 2005, 25: 675–680
Zhang L D, Deng X F, Feng X L, et al. Study on the sulfonated melamine urea formaldehyde resins used as water soluble dust depressor modified by oxidized starch. New Chem Mater, 2007, 35: 8–10
Qian C X, Ren L F, Luo M. Development of concrete surface defects and cracks repair technology based on microbial-induced mineralization. J Chin Ceram Soc, 2015, 43: 619–631
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhan, Q., Qian, C. Effect of treatment process on consolidation efficiency of fugitive dust cemented by bio-activated cementitious material based on CO2 capture. Sci. China Technol. Sci. 59, 1194–1200 (2016). https://doi.org/10.1007/s11431-016-6065-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11431-016-6065-7