Abstract
In this research, structural-functional integrated cement-based materials were prepared by employing cement paste and a microencapsulated phase change material (MPCM) manufactured using urea-formaldehyde resin as the shell and paraffin as the core material. The encapsulation ratio of the MPCM could reach up to 91.21 wt%. Thermal energy storage cement pastes (TESCPs) incorporated with different MPCM contents (5%, 10%, 15%, 20% and 25% by weight of cement) were developed, and their thermal and mechanical properties were studied. The results showed that the total energy storage capacity of the hardened cement specimens with MPCM increased by up to 3.9-times compared with that of the control cement paste. The thermal conductivity at different temperature levels (35-36 °C, 55-56 °C and 72-74 °C) decreased with the increase of MPCM content, and the decrease was the highest when the temperature level was 55-56 °C. Moreover, the compressive strength, flexural strength and density of hardened cement paste decreased with the increase in MPCM content linearly. Among the evaluated properties, the compressive strength of TESCPs had a larger and faster degradation with the increase of MPCM content.
| Original language | English |
|---|---|
| Pages (from-to) | 8070-8087 |
| Number of pages | 18 |
| Journal | Materials |
| Volume | 7 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
Fingerprint
Keywords
- Cement-based materials
- Mechanical properties
- microencapsulated phase change material (MPCM)
- Thermal energy storage
- Thermal properties
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Thermophysical and mechanical properties of hardened cement paste with microencapsulated phase change materials for energy storage. / Cui, Hongzhi; Liao, Wenyu; Memon, Shazim Ali; Dong, Biqin; Tang, Waiching.
In: Materials, Vol. 7, No. 12, 2014, p. 8070-8087.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermophysical and mechanical properties of hardened cement paste with microencapsulated phase change materials for energy storage
AU - Cui, Hongzhi
AU - Liao, Wenyu
AU - Memon, Shazim Ali
AU - Dong, Biqin
AU - Tang, Waiching
PY - 2014
Y1 - 2014
N2 - In this research, structural-functional integrated cement-based materials were prepared by employing cement paste and a microencapsulated phase change material (MPCM) manufactured using urea-formaldehyde resin as the shell and paraffin as the core material. The encapsulation ratio of the MPCM could reach up to 91.21 wt%. Thermal energy storage cement pastes (TESCPs) incorporated with different MPCM contents (5%, 10%, 15%, 20% and 25% by weight of cement) were developed, and their thermal and mechanical properties were studied. The results showed that the total energy storage capacity of the hardened cement specimens with MPCM increased by up to 3.9-times compared with that of the control cement paste. The thermal conductivity at different temperature levels (35-36 °C, 55-56 °C and 72-74 °C) decreased with the increase of MPCM content, and the decrease was the highest when the temperature level was 55-56 °C. Moreover, the compressive strength, flexural strength and density of hardened cement paste decreased with the increase in MPCM content linearly. Among the evaluated properties, the compressive strength of TESCPs had a larger and faster degradation with the increase of MPCM content.
AB - In this research, structural-functional integrated cement-based materials were prepared by employing cement paste and a microencapsulated phase change material (MPCM) manufactured using urea-formaldehyde resin as the shell and paraffin as the core material. The encapsulation ratio of the MPCM could reach up to 91.21 wt%. Thermal energy storage cement pastes (TESCPs) incorporated with different MPCM contents (5%, 10%, 15%, 20% and 25% by weight of cement) were developed, and their thermal and mechanical properties were studied. The results showed that the total energy storage capacity of the hardened cement specimens with MPCM increased by up to 3.9-times compared with that of the control cement paste. The thermal conductivity at different temperature levels (35-36 °C, 55-56 °C and 72-74 °C) decreased with the increase of MPCM content, and the decrease was the highest when the temperature level was 55-56 °C. Moreover, the compressive strength, flexural strength and density of hardened cement paste decreased with the increase in MPCM content linearly. Among the evaluated properties, the compressive strength of TESCPs had a larger and faster degradation with the increase of MPCM content.
KW - Cement-based materials
KW - Mechanical properties
KW - microencapsulated phase change material (MPCM)
KW - Thermal energy storage
KW - Thermal properties
UR - http://www.scopus.com/inward/record.url?scp=84921301056&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921301056&partnerID=8YFLogxK
U2 - 10.3390/ma7128070
DO - 10.3390/ma7128070
M3 - Article
VL - 7
SP - 8070
EP - 8087
JO - Materials
JF - Materials
SN - 1996-1944
IS - 12
ER -