State Key Laboratory of Green Building Materials

Beijing, China

State Key Laboratory of Green Building Materials

Beijing, China

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Zhao C.,China Building Material Test and Certification Group Co. | Zhao C.,State Key Laboratory of Green Building Materials | Liu Y.,China Building Material Test and Certification Group Co. | Liu Y.,State Key Laboratory of Green Building Materials | And 4 more authors.
Key Engineering Materials | Year: 2017

Aluminum-plastic composite panel is a kind of new type energy-saving and environmental-friendly curtain wall decorative material, and is widely used in building exterior wall, curtain wall board, old building reconstruction and renovation and other projects. With the development and improvement of production and application technology, the performance and functions of aluminum-plastic composite panel products have been optimized continuously; especially at present, all countries in the world have more and more strict requirements on fire safety, and the fire safety standards of buildings also have been improved continuously. In this context, all the manufacturing enterprises have been actively developing new techniques to produce new type aluminum-plastic composite panels, and have significantly improved the fireproof and flame-retardant properties of the products on the basis of ensuring all the performance levels of the products being acceptable. This paper proposes optimal design suggestions via detection analysis on three groups of aluminum-plastic composite panel samples, and is of important practical significance to the research and development of the aluminum-plastic composite panel with low-combustion-heat and flame-retardant core material. © 2017 Trans Tech Publications, Switzerland.


Zhao C.Z.,China Building Material Test and Certification Group Co. | Zhao C.Z.,State Key Laboratory of Green Building Materials | Zhao C.Z.,China Academy of Building Research | Huang M.C.,China Building Material Test and Certification Group Co. | And 7 more authors.
Materials Science Forum | Year: 2016

Plastic pipe is a kind of new pipeline material and its output has been increasing in recent years. It is still mainly used for water supply and drainage of buildings and municipal utility industry as well as for safe drinking in rural areas, about half of all plastic pipelines are used for buildings, and the proportion of these pipelines used in other fields is also increasing. Plastic pipeline system's influence on the environment within its life cycle is the focus of researches in recent years. Based on life cycle assessment (LCA), this paper assesses the common water supply and drainage pipelines (PPR, PE and PVC-U) for buildings for resource and energy consumption, non-renewable resource consumption (ADP)of pollution gas emission, greenhouse effect (GWP), acidification effect (AP) and eutrophication (EP) and inhalable inorganics (RI) generated in the process of life cycle from raw material exploitation to produce production and other environmental influence closely related to the national energy conservation and emission reduction policy. The result shows that the influence indexes of non-renewable resource consumption for functional unit of PPR pipe, PE pipe and PVC-U pipe are 2.22×10-5 Kg antimony eq./ kg, 1.51×10-5 Kg antimony eq./ kg, 6.82×10-6 Kg antimony eq./ kg; those of acidification effect are 1.92×10-2kg SO2 eq./ kg, 1.96×10-2g SO2 eq./ kg, 3.90×10-2kg SO2 eq./ kg; those of eutrophication are 2.39×10-3kg PO43-eq./ kg, 2.36×10-3kg PO43-eq./ kg, 3.40×10-3kg PO43-eq./ kg; those of inhalable inorganics are 6.46×10-3 kg PM2.5 eq./ kg, 6.30×10-3 kg PM2.5 eq./ kg, 1.91×10-2 kg PM2.5 eq./ kg; those of greenhouse effect are 3.72kg CO2 eq./ kg, 3.60kg CO2 eq./ kg, 7.93kg CO2 eq./ kg. This result shows that the environmental influence of PPR, PE and PVC-U pipes mainly depends on the raw materials required for producing pipes, so the key of plastic pipeline greening is to reduce the consumption of virgin resin. This investigation creates a database about plastic pipeline's influence on environment within its full life cycle for the purpose of laying a foundation for calculating intrinsic energy in a building, promoting selection of green building material, facilitating the realization of green building objective, and improving the knowledge of developer, constructor and user to potential influence of the pipeline system within its life cycle. © 2016 Trans Tech Publications, Switzerland.


Zhao C.,China Building Material Test and Certification Group Co. | Zhao C.,State Key Laboratory of Green Building Materials | Liu Y.,China Building Material Test and Certification Group Co. | Liu Y.,State Key Laboratory of Green Building Materials | And 4 more authors.
Key Engineering Materials | Year: 2016

This paper established a set of localized intrinsic energy and full life-cycle environmental impacts of database for exterior windows. It deeply surveys and analyzes the non-renewable resource consumption (ADP), non-renewable energy consumption (PED), influence of greenhouse effect (GWP), acidification effect (AP), eutrophication (EP) and inhalable inorganics (RI) closely related national energy conservation policy objectives. These lay the foundation for intrinsic energy of buildings. Meanwhile, It discusses contributions of various exterior windows for energy consumption of buildings, which is conducive to using of green building materials and realization of green buildings. © 2016 Trans Tech Publications, Switzerland.


Tang Z.,Beijing University of Technology | Tang Z.,State Key Laboratory of Green Building Materials | Tang Z.,State Key Laboratory of Millimeter Waves | Wang Q.,Beijing University of Technology | And 3 more authors.
IEICE Electronics Express | Year: 2015

In this paper, the absorbing effectiveness of spherical particle absorber made of cheap Fe-rich hollow cenosphere fly-ash is analyzed. The effects of the diameter of spheres, the number of layer and the stack modes of sphere particle on the absorbing effectiveness were explored. Based on the results, a three-layer structure with mixed sizes of spheres was designed, constructed and tested. Obtained results show that this structure has a maximal reflection loss of 9 dB and the bandwidth being higher than 5 dB is more than 17 GHz. When applying the permittivity of Fe-rich hollow cenosphere fly-ash, and the thickness of absorber is 6.5 cm, the maximal reflection loss is 23 dB and the bandwidth being lower than −10 dB is more than 14 GHz, which covers the C, X and Ku bands. The experimental test proved that the three-layer structure absorber has good absorbing effectiveness. © IEICE 2015.


PubMed | Beijing University of Technology, Quartermaster Research Institute, Beijing University of Chemical Technology and State Key Laboratory of Green Building Materials
Type: Journal Article | Journal: Radiation protection dosimetry | Year: 2014

With the increasing city size, high-power electromagnetic radiation devices such as high-power medium-wave (MW) and short-wave (SW) antennas have been inevitably getting closer and closer to buildings, which resulted in the pollution of indoor electromagnetic radiation becoming worsened. To avoid such radiation exceeding the exposure limits by national standards, it is necessary to predict and survey the electromagnetic radiation by MW and SW antennas before constructing the buildings. In this paper, a modified prediction method for the far-field electromagnetic radiation is proposed and successfully applied to predict the electromagnetic environment of an area close to a group of typical high-power MW and SW wave antennas. Different from currently used simplified prediction method defined in the Radiation Protection Management Guidelines (H J/T 10. 3-1996), the new method in this article makes use of more information such as antennas patterns to predict the electromagnetic environment. Therefore, it improves the prediction accuracy significantly by the new feature of resolution at different directions. At the end of this article, a comparison between the prediction data and the measured results is given to demonstrate the effectiveness of the proposed new method.


Ma Z.,China Academy of Building Research | Ma Z.,State Key Laboratory of Green Building Materials | Wang L.,China Academy of Building Research | Wang L.,State Key Laboratory of Green Building Materials | Ma J.,University of Jinan
Materials Science Forum | Year: 2013

Accelerators have taken an important role in preparation of shotcrete. The preparation method of a new chlorine-free and alkali-free liquid accelerator was amplified, and its effects on cement setting time, mortar strength and other performances were studied. The results showed that the preparation accelerator was transparent liquid, alkali-free, chlorine-free, stabilization, and long time not to layer. When the addition ratio (in mass) of accelerator is more than 4%, such performances like setting time and mortar strength of cement reach the requirement of JC477-2005 standard. The 1d compressive strength of cement mortar was up to 14Mpa, and 28d compressive strength doe not decrease. The best addition ratio of this accelerator is 4% to 6%. © (2013) Trans Tech Publications, Switzerland.


Yan N.,China Academy of Building Research | Yan N.,National Research Center for Glass Processing | Yan N.,State Key Laboratory of Green Building Materials | Wang H.,China Academy of Building Research | And 7 more authors.
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | Year: 2013

Al-doped ZnO (AZO) transparent conductive films on glass substrates were prepared via pulsed DC reactive magnetron sputtering at room temperature. The oxygen partial pressure was controlled by a closed-loop controller with a λ-sensor. The dependence of oxygen partial pressure on the optical, electrical, and structural properties was investigated. The XRD analysis indicated that AZO films deposited under various oxygen partial pressures were a polycrystalline wurtzite structure with a [002] preferred orientation. The dense AZO film with columnar growth was observed on the plan-view. The AZO film deposited under 3.36 × 10-2Pa oxygen partial pressure has the superior performance with a minimal resistivity of 1.15 × 10-3Ω·cm, a carrier mobility of 25.8 cm2/(V?s), a carrier concentration of 2.1 × 1020/cm3, and a transmittance of 79.1% in the visible light range. The direct band gap increases from 3.49 eV to 3.72 eV as the carrier concentration increases from 1.03 × 1020/cm3 to 3.64 × 1020/cm3.


Yu G.,China Academy of Building Research | Yu G.,State Key Laboratory of Green Building Materials | Wang H.,China Academy of Building Research | Wang H.,State Key Laboratory of Green Building Materials
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | Year: 2016

For the requirement of off-line Low-E coating design and process of refractive index and thickness of transparent dielectric layer control, the method and the process of using genetic algorithm were proposed according to the on-line reflection spectra of the film surface and the Cauchy optical model. The on-line spectral measurement device was installed on the export side of the coating equipment, the width of the coated glass was measured at 24 points, and the wavelength range of each point was 380~780 nm, the time required for each measuring point was less than 260 ms. The characteristics of the Cauchy optical model and the dielectric film in the Low-E film system were discussed based on the principle of genetic algorithm to establish the analysis process of film refractive index and thickness, and the influence of the main parameters of genetic algorithms was discussed. The optimum genetic optimum condition is population size of 35 individuals, 40 iterations, the elite count of 8, and crossover fraction of 0.2. The reasonable initial value was established according to the reflectance spectrum characteristics of film surface for the more appropriate analysis of the results. © 2016, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.


Ma Z.,China Academy of Building Research | Ma Z.,State Key Laboratory of Green Building Materials | Wang L.,China Academy of Building Research | Wang L.,State Key Laboratory of Green Building Materials
Procedia Engineering | Year: 2012

The status of carbon dioxide emission, separation and application from cement kiln were reviewed. The molecule structure of carbon dioxide, the thermodynamics feasibility of fixation of carbon dioxide into polymer was also analyzed. Fixation technologies and the development of catalysts for the fixation of carbon dioxide into polymer were reviewed in detail. The outlook of the catalyst was suggested. © 2011 Published by Elsevier Ltd.


Zhou S.,East China Jiaotong University | Zhou S.,State Key Laboratory of Green Building Materials | Huang S.,East China Jiaotong University
Disaster Advances | Year: 2010

This paper presents an experimental investigation on the effect of two kinds of activated coal gangue powder on compressive strength, porosity and pore size distribution of hardened cement mortars. Two kinds of activated coal gangue powder, a simple thermal activated coal gangue powder (OCG) and a doubly activated coal gangue powder (GCG), which was grinded in mill after calcinations, were used to partially replace Portland cement at 0%, 10%, 30% by weight. The water to binder ratio (w/b) of 0.5 was used for all the blended cement mortar mixes.Test results indicated that the blended cement mortars with doubly activated coal gangue powder produced higher compressive strength than that with simple thermal activated coal gangue powder. Hie porosity and pore size distribution of blended cement mortar was significantly affected by the replacement of activated coal gangue powder.

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