The mineralogical footprint of carbon cycles during geopolymer construction materials development: Case study on Xiong’an green new materials

doi:10.13745/j.esf.sf.2025.8.68

Abstract

Abstract:

Carbon cycle and emissions have been receiving widespread attention recently in daily human activity. This study, focusing on the new material production process in Xiong’an New District, has conducted field investigations and laboratory measurements on the carbon composition, content, and forms in mine tailings, construction waste, and products at 3-day, 7-day, and 28-day curing periods. The variation in carbon content and its transformation across different stages of the product lifecycle were studied, and the quantities of carbon emission and absorption were estimated. It is found that the treatment process of mine tailings and construction waste releases only CO₂ gas, with no variation in solid and liquid forms of carbon. Conversely, the solidification process of the new material slurry sequesters CO₂. Overall, the whole production process absorbs more CO₂ than it releases, acting as a carbon sink process. Preliminary estimates indicate that 1 m³ of the new construction material absorbs 21.87 kg (approximately 11.05 m³) of CO₂ gas during production. As truly green materials, their application will demonstrate significant economic potential and create a wide range of social benefits.

Key words: new construction materials, mining retail, construction solid waste, carbon cycle, carbon emission, Xiong’an New District

CLC Number:

DONG Guochen, WANG Hui, ZHANG Yihe, ZHANG Na, LIU Yanbin, XIE Bingjing, JING Yi, MO Jun. The mineralogical footprint of carbon cycles during geopolymer construction materials development: Case study on Xiong’an green new materials[J]. Earth Science Frontiers, 2025, 32(6): 367-376.

Figures/Tables 10

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序号	样品编号	样品属性	采样地点	含量/%	备注
1	C3-4	初期固化材料	砂浆固化实验室	2.79	固化3天
2	C3-5			3.18
3	C3-6			2.56
4	C7-4	中期固化材料		3.19	固化7天
5	C7-5			3.03
6	C7-6		3.20
7	C8-4	长期固化材料	3.16	固化28天
8	C8-5		3.20
9	C8-6		3.04
10	24CZ01	建筑固废	雄安新区	1.91
11	24CZ02	铁矿尾矿	太行山北段	0.05
12	24CZ03	铁矿尾矿	太行山北段	0.10
13	24FT01	粗粒尾矿	浮图峪铜矿	1.58
14	24FT02	细粒尾矿	浮图峪铜矿	5.77
15	24ZJ05	细粒尾矿	支家庄铁矿	2.25
16	24ZJ06	细粒尾矿	支家庄铁矿	2.35

序号	样品编号	样品属性	采样地点	含量/%	备注
1	C3-4	初期固化材料	砂浆固化实验室	2.79	固化3天
2	C3-5			3.18
3	C3-6			2.56
4	C7-4	中期固化材料		3.19	固化7天
5	C7-5			3.03
6	C7-6		3.20
7	C8-4	长期固化材料	3.16	固化28天
8	C8-5		3.20
9	C8-6		3.04
10	24CZ01	建筑固废	雄安新区	1.91
11	24CZ02	铁矿尾矿	太行山北段	0.05
12	24CZ03	铁矿尾矿	太行山北段	0.10
13	24FT01	粗粒尾矿	浮图峪铜矿	1.58
14	24FT02	细粒尾矿	浮图峪铜矿	5.77
15	24ZJ05	细粒尾矿	支家庄铁矿	2.25
16	24ZJ06	细粒尾矿	支家庄铁矿	2.35

样品号	w_B/%
样品号	SiO₂	TiO₂	Al₂O₃	CaO	MgO	TFe	Na₂O	K₂O	MnO	P₂O₅	LOI
C3-2	47.30	1.04	16.07	14.52	4.23	4.94	2.73	0.99	0.18	0.16	7.67
C3-3	48.27	1.01	15.47	13.59	4.03	5.02	3.03	1.01	0.17	0.16	8.09
C7-2	47.35	1.04	15.89	14.27	4.18	4.92	2.86	0.99	0.18	0.16	8.01
C7-3	47.06	1.03	16.02	14.33	4.18	4.82	2.88	0.99	0.18	0.16	8.19
C8-2	47.68	1.03	15.91	14.21	4.17	4.97	2.74	1.01	0.18	0.16	7.78
C8-3	47.41	1.03	15.65	13.94	4.13	5.03	2.76	0.98	0.18	0.16	8.58
24CZ01	52.95	0.67	8.96	14.36	2.78	4.85	1.76	1.54	0.13	0.21	11.63
24CZ02	64.19	1.41	12.17	3.74	2.44	8.47	3.08	2.25	0.16	0.34	1.57
24CZ03	60.83	0.94	12.88	7.07	4.08	8.68	2.93	1.00	0.16	0.19	1.14
24FT01	35.14	0.39	4.59	18.40	5.27	27.21	0.12	0.14	0.95	0.10	7.54
24FT02	27.75	0.26	3.79	21.21	15.49	5.35	0.10	0.52	0.24	0.07	24.93
24ZJ05	38.75	0.20	5.46	13.74	22.40	3.55	1.23	1.09	0.33	0.07	13.09
24ZJ06	35.90	0.11	3.03	11.81	29.42	3.28	0.52	0.68	0.37	0.05	14.76

样品号	w_B/%
样品号	SiO₂	TiO₂	Al₂O₃	CaO	MgO	TFe	Na₂O	K₂O	MnO	P₂O₅	LOI
C3-2	47.30	1.04	16.07	14.52	4.23	4.94	2.73	0.99	0.18	0.16	7.67
C3-3	48.27	1.01	15.47	13.59	4.03	5.02	3.03	1.01	0.17	0.16	8.09
C7-2	47.35	1.04	15.89	14.27	4.18	4.92	2.86	0.99	0.18	0.16	8.01
C7-3	47.06	1.03	16.02	14.33	4.18	4.82	2.88	0.99	0.18	0.16	8.19
C8-2	47.68	1.03	15.91	14.21	4.17	4.97	2.74	1.01	0.18	0.16	7.78
C8-3	47.41	1.03	15.65	13.94	4.13	5.03	2.76	0.98	0.18	0.16	8.58
24CZ01	52.95	0.67	8.96	14.36	2.78	4.85	1.76	1.54	0.13	0.21	11.63
24CZ02	64.19	1.41	12.17	3.74	2.44	8.47	3.08	2.25	0.16	0.34	1.57
24CZ03	60.83	0.94	12.88	7.07	4.08	8.68	2.93	1.00	0.16	0.19	1.14
24FT01	35.14	0.39	4.59	18.40	5.27	27.21	0.12	0.14	0.95	0.10	7.54
24FT02	27.75	0.26	3.79	21.21	15.49	5.35	0.10	0.52	0.24	0.07	24.93
24ZJ05	38.75	0.20	5.46	13.74	22.40	3.55	1.23	1.09	0.33	0.07	13.09
24ZJ06	35.90	0.11	3.03	11.81	29.42	3.28	0.52	0.68	0.37	0.05	14.76

点号	尾矿类型	尾矿特征	测量位置	w_B/10^-6			备注
点号	尾矿类型	尾矿特征	测量位置	CO₂	H₂S	SO₂	备注
D01	空气	尾矿库	地表上1 m处	662	0	0	大气含量
D02	空气	固废堆	地表上1 m处	662	0	0	大气含量
D1	粗粒尾矿	碎块状	尾矿坝处	554	0.301	0.121	新近堆置
D2	细粒尾矿	细粉状	库边北缘	549	0.130	0.121	堆置较久
D3	细粒尾矿	细粉状	向中心过渡带	868	0.04	0.058	距上点10 m
D4	细粒尾矿	细粉状	尾矿中心	555	0	0.056	可见硫化物
D5	细粒尾矿	细粉状	尾矿南部	1 965	0	0.248	水流旁
D7	细粒尾矿	细粉状	尾矿南部	547	0	0.014	距南边20 m
D8	粗粒尾矿	碎块状	尾矿库南坡	763	0.088	0.121	新近堆置
D9	粗粒尾矿	碎块状	矿山西部沟南坡	743	0.016	0.139	新近堆置
D10	粗粒尾矿	碎块状	矿山西部沟南坡	743	0.423	0.230	新近堆置
D11	粗粒尾矿	碎块状	矿山西部沟南坡	1 071	0	0.037	新近堆置
D12	粗粒尾矿	碎块状	矿山西部沟南坡	851	0	0	新近堆置
D16	沙土固废	细粉状	固废坝处	766	0	0.056	新近堆
D17	沙土固废	细粉状	库边北缘	654	0	0.010	东北移20 m
D18	沙土固废	细粉状	向中心过渡带	654	0.305	0.256	东移20 m
D19	沙土固废	细粉状	尾矿中心	1 199	0.025	0.123	移动30 m
D20	沙土固废	细粉状	尾矿南部	>2 000	0	0.035	南移20 m
D20-1	沙土固废	细粉状	北部堆顶	1 522	0	0	坡顶较低处
D21	沙土固废	细粉状	南部高地	974	0.136	0.250	坡顶北边
D22	沙土固废	细粉状	南移20 m	1 089	0	0.250	坡顶中心
D23	沙土固废	细粉状	西移20 m	981	0.022	0.139	西移30 m
D24	粗粒固废	碎块状	固废堆西坡	766	0	0	半坡上
D28	粗粒固废	碎块状	固废堆西坡底	890	0	0.022	堆底路边