A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Recycling of water quenched slag and silica sand tailing for the synthesis of an eco-friendly permeable material
Highlights The water quenched slag (WQS) and silica sand tailing (SST) were combined to prepared a novel permeable material (WSPM). The WSPM with the WQS/SST mass ratio of 2/8 sintered at 1200 °C for 1 h exhibits the best engineering properties. The prepared WSPM shows stable immobilization for the heavy-metal ions including Zn, Mn, and Cr.
Abstract This research used the water quenched slag (WQS) and silica sand tailing (SST) to prepare a novel WQS-SST based permeable material (WSPM) by traditional sintering method. Effects of WQS/SST mass ratio and sintering temperature on the structure and properties of the WSPM were discussed. The XRD and SEM-EDS results show that the combination of the WQS and SST can form the glass liquid phase (GLP) which is CaO-Fe2O3-SiO2 glass as main composition accompanying with small amount of Al2O3 and one or more trace amounts of Na2O/K2O/MgO, and promote the synthesis of the WSPM. Both the WQS/SST mass ratio and sintering temperature can affect the formation of the GLP, which further alter the structure and properties of the WSPM. Under the optimum condition (WQS/SST = 2/8, 1200 °C/1h), the prepared WSPM shows the best engineering properties, including the high permeability of 2.03 × 10−2 cm/s and the considerable compressive strength of 26.83 MPa. Meanwhile, the WSPM with the optimum condition shows stable immobilization behavior for the heavy-metal ions of Zn, Mn, and Cr in the ICP test. It indicates that the WSPM in our work is an eco-friendly all-solid-waste based permeable material, which has great application value in the field of permeable bricks for sidewalk construction.
Recycling of water quenched slag and silica sand tailing for the synthesis of an eco-friendly permeable material
Highlights The water quenched slag (WQS) and silica sand tailing (SST) were combined to prepared a novel permeable material (WSPM). The WSPM with the WQS/SST mass ratio of 2/8 sintered at 1200 °C for 1 h exhibits the best engineering properties. The prepared WSPM shows stable immobilization for the heavy-metal ions including Zn, Mn, and Cr.
Abstract This research used the water quenched slag (WQS) and silica sand tailing (SST) to prepare a novel WQS-SST based permeable material (WSPM) by traditional sintering method. Effects of WQS/SST mass ratio and sintering temperature on the structure and properties of the WSPM were discussed. The XRD and SEM-EDS results show that the combination of the WQS and SST can form the glass liquid phase (GLP) which is CaO-Fe2O3-SiO2 glass as main composition accompanying with small amount of Al2O3 and one or more trace amounts of Na2O/K2O/MgO, and promote the synthesis of the WSPM. Both the WQS/SST mass ratio and sintering temperature can affect the formation of the GLP, which further alter the structure and properties of the WSPM. Under the optimum condition (WQS/SST = 2/8, 1200 °C/1h), the prepared WSPM shows the best engineering properties, including the high permeability of 2.03 × 10−2 cm/s and the considerable compressive strength of 26.83 MPa. Meanwhile, the WSPM with the optimum condition shows stable immobilization behavior for the heavy-metal ions of Zn, Mn, and Cr in the ICP test. It indicates that the WSPM in our work is an eco-friendly all-solid-waste based permeable material, which has great application value in the field of permeable bricks for sidewalk construction.
Recycling of water quenched slag and silica sand tailing for the synthesis of an eco-friendly permeable material
Liu, Jianlei (author) / Shi, Xiaoxin (author) / Zou, Qiong (author) / Zhao, Tangjin (author) / Zheng, Jie (author) / Liu, Taoyong (author) / Han, Lei (author) / Ke, Yong (author) / Wang, Qikun (author)
2022-09-28
Article (Journal)
Electronic Resource
English
High-gelling water-quenched slag permeable pavement material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2021