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利用煤矸石、粉煤灰和钢渣制备高强度陶粒。

Preparation of high-strength ceramsite from coal gangue, fly ash, and steel slag.

作者信息

Chen Xi, Zhang Chenxi, Tong Yuping, Wang Xiao, Chen Xiao, Yang Yuandong, Liu Jiayin, Chen Qi, Li Ningning

机构信息

School of Food Science and Technology, Henan University of Technology Henan 450001 China

Zhengzhou Zhongyuan Silande High Technology Co., Ltd Henan 450000 China.

出版信息

RSC Adv. 2025 Feb 10;15(6):4332-4341. doi: 10.1039/d4ra08140d. eCollection 2025 Feb 6.

DOI:10.1039/d4ra08140d
PMID:39931397
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11808660/
Abstract

Coal gangue (CG) and fly ash (FA) are generated in large quantities worldwide. In this study, high-strength and lightweight aggregate ceramsites were prepared from CG, FA, and steel slag (SS) without any additional chemical additives through high-temperature sintering. The study aimed at determine the sintering mechanism and optimal production process by evaluating the performance of ceramsites produced under various conditions. The results indicated that the ratio of CG, FA, and SS significantly influenced the ceramsites' properties. When the ratio of CG, FA, and SS was 3 : 1 : 1 and the sintering temperature was 1200 °C, the ceramsites demonstrated optimal performance. These ceramsites had a bulk density of 947 kg m, an apparent density of 1859 kg m, a high compressive strength of 21.17 MPa, and a 1 hour water absorption of 1.35%. The high-strength and lightweight aggregate ceramsites produced from CG, FA, and SS hold promise as construction materials, particularly due to the benefits of waste recycling. This study highlights the potential of utilizing these ceramsites as sustainable alternatives in various construction applications.

摘要

煤矸石（CG）和粉煤灰（FA）在全球范围内大量产生。在本研究中，通过高温烧结，以煤矸石、粉煤灰和钢渣（SS）为原料，无需添加任何额外的化学添加剂，制备出了高强度轻质骨料陶粒。该研究旨在通过评估在各种条件下生产的陶粒性能来确定烧结机理和最佳生产工艺。结果表明，煤矸石、粉煤灰和钢渣的比例对陶粒性能有显著影响。当煤矸石、粉煤灰和钢渣的比例为3∶1∶1且烧结温度为1200℃时，陶粒表现出最佳性能。这些陶粒的堆积密度为947 kg/m³，表观密度为1859 kg/m³，抗压强度高达21.17 MPa，1小时吸水率为1.35%。由煤矸石、粉煤灰和钢渣制备的高强度轻质骨料陶粒有望成为建筑材料，特别是由于其具有废物回收利用的优势。本研究突出了将这些陶粒用作各种建筑应用中可持续替代品的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/8710a19be060/d4ra08140d-f18.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/3449c2a12ed8/d4ra08140d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/554c48268374/d4ra08140d-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/75c327e2bc0c/d4ra08140d-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/6ff82b875e5e/d4ra08140d-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/2547a2d2b5a8/d4ra08140d-f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/4d6455ea3387/d4ra08140d-f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/b3bf029c5c72/d4ra08140d-f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/be094abc6c12/d4ra08140d-f16.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/6fc69747c912/d4ra08140d-f17.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/8710a19be060/d4ra08140d-f18.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/3449c2a12ed8/d4ra08140d-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/554c48268374/d4ra08140d-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/75c327e2bc0c/d4ra08140d-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/6ff82b875e5e/d4ra08140d-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/2547a2d2b5a8/d4ra08140d-f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/4d6455ea3387/d4ra08140d-f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/b3bf029c5c72/d4ra08140d-f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/be094abc6c12/d4ra08140d-f16.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/6fc69747c912/d4ra08140d-f17.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afef/11808660/8710a19be060/d4ra08140d-f18.jpg

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