Thermo-Physical Studies on Synthesized Lightweight Nano Cementitious Materials
Hamada Shoukry Mohamed;
Abstract
Cementitious Materials”
Energy is one of the most important themes of sustainable development in countries around the world and as a result of the importance of this theme; many academic research programs have been developed to minimize energy consumption in all sectors. Energy conservation in buildings is taking central attention in Egypt on the public, designers and decision makers’ levels.
Building sector is one of the major energy consumers, the data published by the Ministry of Energy and Electricity showed that buildings in Egypt (residential and commercial sectors) consume the largest portion (about 60%) of the total electric energy sold in the country. An analysis of the data showed that air conditioning accounts for about 73% of total electricity consumed in the residential sector. The excessive demand for air-conditioning has created a need for the design of energy efficient buildings. Thermal characteristics of the building envelope have a major impact on the energy efficiency of buildings and can make a significant contribution to minimizing the building energy consumption for heating and cooling and hence in reducing CO2 emissions. The most basic property that used for determining the thermal performance of building materials is the thermal conductivity; Therefore, Improving the thermal performance of a building envelope will result in minimizing heat transfer through building skins; this will reduce the amount of cooling energy required to maintain comfortable indoor air temperature in hot climate, i.e. this will lower the load on the air-conditioning system. Improving the thermal properties of the existing building envelope can be considered as one of the most reasonable solutions in order to reduce the building energy consumption.
Cementitious materials are widely used for plastering of the building envelopes; however, they possess low thermal resistivity, low tensile strength and ductility which leading to cracking with time. It would be advantageous to improve thermal resistivity of cementitious plastering materials whilst keeping their mechanical performance acceptable/reasonable.
In contrast to previous works reported in the literature, novel lightweight cementitious surface composites (LWCSC) with improved thermal resistivity, enhanced solar reflectivity and reasonable mechanical strength are
Energy is one of the most important themes of sustainable development in countries around the world and as a result of the importance of this theme; many academic research programs have been developed to minimize energy consumption in all sectors. Energy conservation in buildings is taking central attention in Egypt on the public, designers and decision makers’ levels.
Building sector is one of the major energy consumers, the data published by the Ministry of Energy and Electricity showed that buildings in Egypt (residential and commercial sectors) consume the largest portion (about 60%) of the total electric energy sold in the country. An analysis of the data showed that air conditioning accounts for about 73% of total electricity consumed in the residential sector. The excessive demand for air-conditioning has created a need for the design of energy efficient buildings. Thermal characteristics of the building envelope have a major impact on the energy efficiency of buildings and can make a significant contribution to minimizing the building energy consumption for heating and cooling and hence in reducing CO2 emissions. The most basic property that used for determining the thermal performance of building materials is the thermal conductivity; Therefore, Improving the thermal performance of a building envelope will result in minimizing heat transfer through building skins; this will reduce the amount of cooling energy required to maintain comfortable indoor air temperature in hot climate, i.e. this will lower the load on the air-conditioning system. Improving the thermal properties of the existing building envelope can be considered as one of the most reasonable solutions in order to reduce the building energy consumption.
Cementitious materials are widely used for plastering of the building envelopes; however, they possess low thermal resistivity, low tensile strength and ductility which leading to cracking with time. It would be advantageous to improve thermal resistivity of cementitious plastering materials whilst keeping their mechanical performance acceptable/reasonable.
In contrast to previous works reported in the literature, novel lightweight cementitious surface composites (LWCSC) with improved thermal resistivity, enhanced solar reflectivity and reasonable mechanical strength are
Other data
| Title | Thermo-Physical Studies on Synthesized Lightweight Nano Cementitious Materials | Other Titles | دراسات فيزيوحرارية على مواد أسمنتية نانومترية خفيفة | Authors | Hamada Shoukry Mohamed | Issue Date | 2017 |
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