Preparation of low hydration heat cement slurry with micro-encapsulated thermal control material

Feng, Qian; Liu, Xian-jie; Peng, Zhigang; Zheng, Yong; Liu, Huan

doi:10.1016/j.energy.2019.116000

Cited by 27 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heat released from the hydration process of cement slurry will lead to the increase of hydrate reservoir temperature and the decomposition of hydrate, which threatens the drilling safety. 56,57 Merey 58 summarized several requirements for a new type of cement slurry for drilling hydrate reservoirs: (1) lower heat of hydration than conventional cements. (2) Lower thermal conductivity than conventional cements.…”

Section: Effect In Drilling Fluid and Cement Slurrymentioning

confidence: 99%

Research progress on the effects of nanoparticles on gas hydrate formation

Zhang

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Effect In Drilling Fluid and Cement Slurrymentioning

confidence: 99%

Research progress on the effects of nanoparticles on gas hydrate formation

Zhang

et al. 2022

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Of course, there are many substances in chemical admixtures that have temperature control properties for cement hydration, mainly including starch dextrin admixtures [ 11 ], hydroxy carboxylate salts [ 12 ], phase change materials [ 13 ], etc. However, most of these substances are powder chemical admixtures, and their dosage in cement is extremely low, so there are certain dispersion problems in their applications, resulting in unnecessary production costs.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Butyl Acrylate Copolymer Emulsion and Its Regulation Effect on Cement Hydration

Mao

Deng

2023

Materials

View full text Add to dashboard Cite

Due to its large volume and poor thermal conductivity, mass concrete is prone to temperature cracking caused by heat release during cement hydration after pouring. To address the issue of temperature cracking in mass concrete, this study utilized emulsion polymerization to prepare polybutyl acrylate (PBA) emulsions. At an optimal dosage of 1.5%, the addition of a PBA emulsion reduced the temperature rise of cement paste by 12.4%. The inhibitory mechanism of a PBA emulsion on cement hydration was analyzed by characterization techniques such as isothermal calorimetry, X-ray diffraction Rietveld full-profile fitting method (XRD), thermogravimetric–differential scanning calorimetry (TG-DSC), and mercury intrusion porosimetry (MIP). The results showed that the C3S content in the cement specimens with 1%, 1.5%, and 2% PBA increased by 13.83%, 23.52%, and 34.65% compared to the blank group, respectively, while the C3A content increased by 92.59%, 79.63%, and 96.30%, respectively. The addition of a PBA emulsion can slow down the hydration rate of C3S and C3A, thereby reducing the temperature rise and fall rate of cement hydration, reducing the peak heat release of the hydration reaction, and ultimately achieving the inhibition of the cement hydration reaction. In addition, the mechanical properties of PBA-modified cement-based materials were also tested. The results show that the addition of PBA can affect the early strength development of cement samples, but has no effect on the strength after 60 days. Therefore, PBA can be used as a hydration temperature rise control material to reduce the risk of temperature cracking in mass concrete.

show abstract

“…9 In addition, the microencapsulated phase-change slurry (MPCS) with the functions of heat storage and heat transfer can be prepared by mixing MPCM particles with the carrier medium (water). Due to its advantages of large heat transfer coefficient, good thermal stability and fast heat transfer rate, the MPCS has been widely used in various fields including solar radiation utilization, 10,11 industrial waste heat recovery, 12,13 textile industry, 14 and cold storage air conditioning systems. 15,16 The experimental study of Chen et al 17 showed that the MPCS as a thermal energy transfer and storage medium has a better application prospect than water.…”

Section: Introductionmentioning

confidence: 99%

Thermal performances evaluation of a flat‐plate solar collector using microencapsulated phase‐change slurry as heat transfer medium

Ran

Zhang

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Microencapsulated phase-change slurry (MPCS) is composed of microencapsulation phase-change materials (MPCM) and carrying medium (water), which can be used for heat transfer and thermal energy storage. Some theoretical and experimental works have been proposed on the thermal energy storage and flow performance of MPCS. However, there are few studies on the performances of MPCS in the thermal energy devices (eg, solar collector). In present work, the numerical model of a flat-plate solar collector with MPCS as the thermal energy storage fluid was established. Then, the effects of mass fraction of MPCS, latent heat and solar radiation on thermal efficiency, and pumping power consumption of the solar collector model were studied. The simulations indicated that the thermal efficiency of the solar collector model was positively correlated with the mass fraction and latent heat, but decreased with the increase of solar radiation. When the inlet flow rate, mass concentration, latent heat and solar radiation of the MPCS were set to 0.01 m/s, 5.90%, 88 kJ/kg and 300 W/m 2 , respectively, thermal efficiency of the solar collector model was the largest, which was 0.711. Moreover, the pumping power consumption was mainly affected by inlet flow rate and mass fraction of MPCS.

show abstract

Preparation of low hydration heat cement slurry with micro-encapsulated thermal control material

Cited by 27 publications

References 30 publications

Research progress on the effects of nanoparticles on gas hydrate formation

Research progress on the effects of nanoparticles on gas hydrate formation

Preparation of Butyl Acrylate Copolymer Emulsion and Its Regulation Effect on Cement Hydration

Thermal performances evaluation of a flat‐plate solar collector using microencapsulated phase‐change slurry as heat transfer medium

Contact Info

Product

Resources

About