Concrete blocks for thermal insulation in hot climate

Al‐Jabri, Khalifa; Hago, Abdel Wahid; Alnuaimi, Ali; Al-Saidy, Abdullah

doi:10.1016/j.cemconres.2004.08.018

Cited by 156 publications

(72 citation statements)

References 1 publication

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“…The basic idea behind using aerated concrete was to attain elongation of the heat flow path through the wall. The direct heat flow through vertical transverse joints was avoided by cancelling vertical joints fully filled with [3]. This caused to a high value of thermal conductivity.…”

Section: Iconcees 2015mentioning

confidence: 99%

“…This is because the behavior of materials will determine the properties which are important for urban thermal balance. Besides that the long term benefit of insulation is that it may reduce the cost of cooling as well as reducing the pollution of the environment [3]. Heat from solar radiation will be absorbed and the infrared will radiate and dissipate part of the accumulated heat through convective, conduction and radiation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Properties of Agro-Industrial Aerated Concrete as Potential Thermal Insulation for Building

Aminudin

Din

Hussin

et al. 2016

MATEC Web of Conferences

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Abstract. The present paper is aiming to provide an actual state of the development of non autoclaved Agro-Industrial aerated concrete by using multiple ashes as improvement of thermal behavior for building. The feasibility of Agro-Industrial wastes as lightweight concrete by utilizing the Palm Oil Fuel Ash (POFA) as binder replacement and bottom ash as fine aggregate was investigated in this paper. Portland cement, bottom ash, aluminum powder and lime (Ca(OH)2) were used in this study. The POFA was used to replace Portland cement and Hydrated Lime at 0%, 5%, 10% and 15% by weight and aluminum powder was added at 0.75% dry weight in order to form bubbles. The compressive strength, water absorption, porosity and the thermal conductivity test were carried out after the concrete were water cured for 7 days and later being exposed to the air and water until 28days. The results show that the 20% replacements give the optimum strength of 7.143MPa and 30% give the best thermal conductivity with 0.48W/mK. Hence, this study aim, was to develop an agro-industrial aerated concrete good in insulation but having an optimum strength. Hence, it has been found that the more the percentage of POFA is added the lower the thermal conductivity since the pore structure is increasing and by the optimization done, 30% replacement has been chosen as the best mix design for Agro-Industrial Aerated Concrete.

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Section: Iconcees 2015mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of Agro-Industrial Aerated Concrete as Potential Thermal Insulation for Building

Aminudin

Din

Hussin

et al. 2016

MATEC Web of Conferences

View full text Add to dashboard Cite

show abstract

“…Using high thermal resistance materials reduces the demand of electrical energy for cooling/heating purposes considerably [12]. For instance, introducing holes, cavities or air gaps in concrete blocks can improve the thermal insulation properties of materials since the thermal conductivity of concrete is higher than the thermal conductivity of air [12].…”

Section: Thermal Insulationmentioning

confidence: 99%

Developing Key Parameters for Green Performance of Partition Wall Blocks

Goh

2016

MATEC Web Conf.

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“…Overlaid reinforced concrete (RC) beams were investigated in various studies, and the efficiency of overlaying for increasing the flexural stiffness and strength of beams under normal temperature conditions (~20 ℃) was verified (Rashid et al 2016, Rashid et al 2015a, Satoh and Kodama 2005, Zhang et al 2012). In practice, many RC structures are exposed to large daily temperature fluctuations, with maximum temperatures reaching 60 ℃ in peak summer, especially in the Middle East and some parts of North America (Al-Jabri et al 2005). It has been reported that high temperature degrades the mechanical properties of concrete, PCM and PCM-concrete bonds and thus may affect the overall behavior of PCM overlaid RC members (Rashid et al 2015a, Rashid et al 2014, 2015b, Rashid et al 2015d.…”

Section: Introductionmentioning

confidence: 99%