Long term properties of cement-based material incorporated with
The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/...
Ausführliche Beschreibung
Autor*in: |
Ren, Miao [verfasserIn] Chen, Tiefeng [verfasserIn] Gao, Xiaojian [verfasserIn] Su, Anshuang [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
Shape-stabilized phase change material |
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Übergeordnetes Werk: |
Enthalten in: Cement and concrete composites - Amsterdam [u.a.] : Elsevier Science, 1989, 142 |
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Übergeordnetes Werk: |
volume:142 |
DOI / URN: |
10.1016/j.cemconcomp.2023.105156 |
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Katalog-ID: |
ELV061802336 |
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520 | |a The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. | ||
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10.1016/j.cemconcomp.2023.105156 doi (DE-627)ELV061802336 (ELSEVIER)S0958-9465(23)00230-5 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl 58.45 bkl Ren, Miao verfasserin aut Long term properties of cement-based material incorporated with 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure Chen, Tiefeng verfasserin aut Gao, Xiaojian verfasserin (orcid)0000-0003-3138-5751 aut Su, Anshuang verfasserin aut Enthalten in Cement and concrete composites Amsterdam [u.a.] : Elsevier Science, 1989 142 Online-Ressource (DE-627)308447875 (DE-600)1502279-1 (DE-576)094503990 0958-9465 nnns volume:142 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 142 |
spelling |
10.1016/j.cemconcomp.2023.105156 doi (DE-627)ELV061802336 (ELSEVIER)S0958-9465(23)00230-5 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl 58.45 bkl Ren, Miao verfasserin aut Long term properties of cement-based material incorporated with 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure Chen, Tiefeng verfasserin aut Gao, Xiaojian verfasserin (orcid)0000-0003-3138-5751 aut Su, Anshuang verfasserin aut Enthalten in Cement and concrete composites Amsterdam [u.a.] : Elsevier Science, 1989 142 Online-Ressource (DE-627)308447875 (DE-600)1502279-1 (DE-576)094503990 0958-9465 nnns volume:142 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 142 |
allfields_unstemmed |
10.1016/j.cemconcomp.2023.105156 doi (DE-627)ELV061802336 (ELSEVIER)S0958-9465(23)00230-5 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl 58.45 bkl Ren, Miao verfasserin aut Long term properties of cement-based material incorporated with 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure Chen, Tiefeng verfasserin aut Gao, Xiaojian verfasserin (orcid)0000-0003-3138-5751 aut Su, Anshuang verfasserin aut Enthalten in Cement and concrete composites Amsterdam [u.a.] : Elsevier Science, 1989 142 Online-Ressource (DE-627)308447875 (DE-600)1502279-1 (DE-576)094503990 0958-9465 nnns volume:142 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 142 |
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10.1016/j.cemconcomp.2023.105156 doi (DE-627)ELV061802336 (ELSEVIER)S0958-9465(23)00230-5 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl 58.45 bkl Ren, Miao verfasserin aut Long term properties of cement-based material incorporated with 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure Chen, Tiefeng verfasserin aut Gao, Xiaojian verfasserin (orcid)0000-0003-3138-5751 aut Su, Anshuang verfasserin aut Enthalten in Cement and concrete composites Amsterdam [u.a.] : Elsevier Science, 1989 142 Online-Ressource (DE-627)308447875 (DE-600)1502279-1 (DE-576)094503990 0958-9465 nnns volume:142 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 142 |
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10.1016/j.cemconcomp.2023.105156 doi (DE-627)ELV061802336 (ELSEVIER)S0958-9465(23)00230-5 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl 58.45 bkl Ren, Miao verfasserin aut Long term properties of cement-based material incorporated with 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure Chen, Tiefeng verfasserin aut Gao, Xiaojian verfasserin (orcid)0000-0003-3138-5751 aut Su, Anshuang verfasserin aut Enthalten in Cement and concrete composites Amsterdam [u.a.] : Elsevier Science, 1989 142 Online-Ressource (DE-627)308447875 (DE-600)1502279-1 (DE-576)094503990 0958-9465 nnns volume:142 GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 142 |
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690 VZ 56.45 bkl 58.45 bkl Long term properties of cement-based material incorporated with Shape-stabilized phase change material Structure-function integrated cement Thermal properties Long-term properties Microstructure |
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ddc 690 bkl 56.45 bkl 58.45 misc Shape-stabilized phase change material misc Structure-function integrated cement misc Thermal properties misc Long-term properties misc Microstructure |
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ddc 690 bkl 56.45 bkl 58.45 misc Shape-stabilized phase change material misc Structure-function integrated cement misc Thermal properties misc Long-term properties misc Microstructure |
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ddc 690 bkl 56.45 bkl 58.45 misc Shape-stabilized phase change material misc Structure-function integrated cement misc Thermal properties misc Long-term properties misc Microstructure |
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Long term properties of cement-based material incorporated with |
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Ren, Miao Chen, Tiefeng Gao, Xiaojian Su, Anshuang |
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long term properties of cement-based material incorporated with |
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Long term properties of cement-based material incorporated with |
abstract |
The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. |
abstractGer |
The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. |
abstract_unstemmed |
The energy-saving concrete was developed by incorporating n-octadecane and diatomite composite shape-stabilized phase change materials (OC/D SSPCMs) into cement concrete. OC/D SSPCMs were prepared by vacuum impregnation of barrel diatomite. The results show that the melting point and enthalpy of OC/D SSPCMs are 25.02 °C and 60.26 J/g, and OC/D SSPCMs have good dispersion and compatibility in cement paste. As a structure-function integrated material, energy-saving concrete with compressive strength of 33.5 MPa has a broad application prospect. Self-designed room test results reveal that energy-saving concrete can reduce the indoor temperature by 4.5 °C. Long-term thermal/mechanical properties, volume deformation and microstructure after thermal cycling treatment were investigated. The results indicate that phase transformation behavior has a huge negative effect on the compressive strength and deformation tendency of energy-saving concrete, being mainly attributed to the significant volume evolution with the temperature of PCM and PCM encapsulation leakage. |
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