Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings

In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the...
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Autor*in:	Junsheng Li [verfasserIn] Wenyuan Ren [verfasserIn] Aijun Zhang [verfasserIn] Shuangcun Li [verfasserIn] Jianping Tan [verfasserIn] Hongtai Liu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	cement mortar iron ore tailings solid waste utilization mechanical properties microstructure

Übergeordnetes Werk:	In: Buildings - MDPI AG, 2012, 13(2023), 1, p 149
Übergeordnetes Werk:	volume:13 ; year:2023 ; number:1, p 149

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/buildings13010149

Katalog-ID:	DOAJ081836406

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520			\|a In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the theoretical feasibility. Second, the uniaxial compressive and tensile strengths, as well as the crack resistance performance of IOTC under different curing ages and different sand substitution rates were tested. Third, the techniques of inductively coupled plasma atomic emission spectrometry (ICP-OES), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS) were used to study the influence of curing age and different sand substitution rates on the chemical, mineralogical, and microstructural characteristics of IOTC. The sand substitution mechanism of IOT was then discussed. The research results proved the feasibility of using IOT to substitute standard sand in cement mortar. Within substitution rate of 0–50%, the mechanical properties increased with the increase of substitution rate. Though limited chemical effects were found by adding IOT, in comparison with standard sand mortar, more hydration products were found and the pore size distribution was changed for IOTC, which corresponds to its mechanical improvement.
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spelling	10.3390/buildings13010149 doi (DE-627)DOAJ081836406 (DE-599)DOAJ86035d4f29cb4ec385b6b27721a06d36 DE-627 ger DE-627 rakwb eng TH1-9745 Junsheng Li verfasserin aut Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the theoretical feasibility. Second, the uniaxial compressive and tensile strengths, as well as the crack resistance performance of IOTC under different curing ages and different sand substitution rates were tested. Third, the techniques of inductively coupled plasma atomic emission spectrometry (ICP-OES), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS) were used to study the influence of curing age and different sand substitution rates on the chemical, mineralogical, and microstructural characteristics of IOTC. The sand substitution mechanism of IOT was then discussed. The research results proved the feasibility of using IOT to substitute standard sand in cement mortar. Within substitution rate of 0–50%, the mechanical properties increased with the increase of substitution rate. Though limited chemical effects were found by adding IOT, in comparison with standard sand mortar, more hydration products were found and the pore size distribution was changed for IOTC, which corresponds to its mechanical improvement. cement mortar iron ore tailings solid waste utilization mechanical properties microstructure Building construction Wenyuan Ren verfasserin aut Aijun Zhang verfasserin aut Shuangcun Li verfasserin aut Jianping Tan verfasserin aut Hongtai Liu verfasserin aut In Buildings MDPI AG, 2012 13(2023), 1, p 149 (DE-627)718622251 (DE-600)2661539-3 20755309 nnns volume:13 year:2023 number:1, p 149 https://doi.org/10.3390/buildings13010149 kostenfrei https://doaj.org/article/86035d4f29cb4ec385b6b27721a06d36 kostenfrei https://www.mdpi.com/2075-5309/13/1/149 kostenfrei https://doaj.org/toc/2075-5309 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2023 1, p 149
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language	English
source	In Buildings 13(2023), 1, p 149 volume:13 year:2023 number:1, p 149
sourceStr	In Buildings 13(2023), 1, p 149 volume:13 year:2023 number:1, p 149
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topic_facet	cement mortar iron ore tailings solid waste utilization mechanical properties microstructure Building construction
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authorswithroles_txt_mv	Junsheng Li @@aut@@ Wenyuan Ren @@aut@@ Aijun Zhang @@aut@@ Shuangcun Li @@aut@@ Jianping Tan @@aut@@ Hongtai Liu @@aut@@
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callnumber-first	T - Technology
author	Junsheng Li
spellingShingle	Junsheng Li misc TH1-9745 misc cement mortar misc iron ore tailings misc solid waste utilization misc mechanical properties misc microstructure misc Building construction Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings
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topic_title	TH1-9745 Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings cement mortar iron ore tailings solid waste utilization mechanical properties microstructure
topic	misc TH1-9745 misc cement mortar misc iron ore tailings misc solid waste utilization misc mechanical properties misc microstructure misc Building construction
topic_unstemmed	misc TH1-9745 misc cement mortar misc iron ore tailings misc solid waste utilization misc mechanical properties misc microstructure misc Building construction
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title	Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings
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title_full	Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings
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author_browse	Junsheng Li Wenyuan Ren Aijun Zhang Shuangcun Li Jianping Tan Hongtai Liu
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title_sort	mechanical properties and microstructure analysis of cement mortar mixed with iron ore tailings
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title_auth	Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings
abstract	In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the theoretical feasibility. Second, the uniaxial compressive and tensile strengths, as well as the crack resistance performance of IOTC under different curing ages and different sand substitution rates were tested. Third, the techniques of inductively coupled plasma atomic emission spectrometry (ICP-OES), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS) were used to study the influence of curing age and different sand substitution rates on the chemical, mineralogical, and microstructural characteristics of IOTC. The sand substitution mechanism of IOT was then discussed. The research results proved the feasibility of using IOT to substitute standard sand in cement mortar. Within substitution rate of 0–50%, the mechanical properties increased with the increase of substitution rate. Though limited chemical effects were found by adding IOT, in comparison with standard sand mortar, more hydration products were found and the pore size distribution was changed for IOTC, which corresponds to its mechanical improvement.
abstractGer	In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the theoretical feasibility. Second, the uniaxial compressive and tensile strengths, as well as the crack resistance performance of IOTC under different curing ages and different sand substitution rates were tested. Third, the techniques of inductively coupled plasma atomic emission spectrometry (ICP-OES), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS) were used to study the influence of curing age and different sand substitution rates on the chemical, mineralogical, and microstructural characteristics of IOTC. The sand substitution mechanism of IOT was then discussed. The research results proved the feasibility of using IOT to substitute standard sand in cement mortar. Within substitution rate of 0–50%, the mechanical properties increased with the increase of substitution rate. Though limited chemical effects were found by adding IOT, in comparison with standard sand mortar, more hydration products were found and the pore size distribution was changed for IOTC, which corresponds to its mechanical improvement.
abstract_unstemmed	In order to study the feasibility and sand substitution mechanism of cement mortar mixed with iron ore tailings (IOT), iron ore tailings cement mortars (referred to as IOTC) with IOT content of 0%, 25%, and 50% were made and tested. First, the basic properties of IOT used were measured to verify the theoretical feasibility. Second, the uniaxial compressive and tensile strengths, as well as the crack resistance performance of IOTC under different curing ages and different sand substitution rates were tested. Third, the techniques of inductively coupled plasma atomic emission spectrometry (ICP-OES), X-ray diffraction (XRD), nuclear magnetic resonance (NMR), scanning electron microscopy and energy-dispersive spectroscopy (SEM-EDS) were used to study the influence of curing age and different sand substitution rates on the chemical, mineralogical, and microstructural characteristics of IOTC. The sand substitution mechanism of IOT was then discussed. The research results proved the feasibility of using IOT to substitute standard sand in cement mortar. Within substitution rate of 0–50%, the mechanical properties increased with the increase of substitution rate. Though limited chemical effects were found by adding IOT, in comparison with standard sand mortar, more hydration products were found and the pore size distribution was changed for IOTC, which corresponds to its mechanical improvement.
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title_short	Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings
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Mechanical Properties and Microstructure Analysis of Cement Mortar Mixed with Iron Ore Tailings

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