Advanced Materials Research Vols. 512-515

Abstract: Series of low-carbon concepts, whose purpose is to make use of natural resources reasonably by reducing carbon emissions, innovating concepts, techniques and standards, are caused by sustainable development nowadays. From the perspective of residential construction, the author would discuss the feasibility of applying low carbon technology in buildings. Also he would give a specific analysis for different types of low carbon techniques to different residential buildings.

Abstract: Warm mix asphalt may have water damage because of the low construction temperature of warm mix asphalt and the slowrate of water evaporation in aggregate. Simulation test system of dynamic water pressure for asphalt which is independent development by south china university of technology is used for evaluating the water damage resistance of warm mix asphalt under high temperature and comparatively analyzing the influence of aggregate modifying agent on the water damage resistance of warm mix asphalt. Test results show, The loss of the splitting strength is obviously decreased on 15°C and water damage resistance of warm mix asphalt is significantly improved after asphalt specimens of warm mix SMA-13 with aggregate modifying agent through 3h simulation test of dynamic water pressure on 60°C；Research results have an important meaning on reducing the early disease of warm mix asphalt in high temperature and rainy

Abstract: The effects of zinc hydroxystannte on the flame-retardant and smoke-suppressant properties of poly (vinyl chloride) (PVC) as well as their mechanism for flame retardancy and smoke suppression were studied through the limiting oxygen index (LOI) test, UL94 test, smoke density test, cone calorimeter, and ESEM. The results show that incorporation of a small amount of ZHS can greatly increase the LOI of PVC and reduce the smoke density of PVC during combustion. The cone data and ESEM analyses results show that incorporation of a small amount of ZHS greatly promotes the char formation of PVC and decreases the amount of hazardous gases released in PVC during combustion.

Abstract: based on the analysis of the impact of the climatic characteristics of Hubei on the green house of rural areas and adoption of the method of architectural design and green energy saving with low technicalization and cost, the purpose of building energy conservation will be achieved, which is suitable for the development and promotion of the energy saving buildings in rural areas.

Abstract: This test summers up the research situation of rubber powder modifier. According to tests of density, flexural strength, compressive strength and cleavage strength, this test analyzes the basic mechanical properties and the variation of rubberized portland cement concrete which is mixing the silica fume modifier. The results show that the flexural strength, compressive strength and cleavage strength of concrete may increase when silica fume concrete admixture modifiers is mixed in cement concrete. The workability, density, flexural strength, compressive strength, ratio of compressive strength and cleavage strength of rubberized portland cement concrete gradually reduced with the increase in dosage of rubber. The rubber particles mixed with concrete which can when the rubber particle size is not more than 30% of the dosage of coarse aggregate, the fine pavement of rubberized portland cement concrete can be got.

Abstract: As social and economic development in China，building scale and medical devices have greatly improved in hospitals, and patients and medical staff are requiring a more and more comfortable indoor environment. All these lead to rising energy consumption of hospital buildings. How to save energy and reduce consumption on the basis of keeping medical quality This paper takes studies on energy consumption of hospitals in Shaanxi province. First of all, questionnaires about energy consumption of hospitals were carried out. Total energy consumption and electricity consumption were analyzed and energy consumption law was summarized. Then, quota principle and quota method of energy consumption were explored, and energy consumption quota of hospital buildings in Shaanxi province was established. This research contributes to energy-saving of hospital building and provides reference for other public buildings in Shaanxi province.

Abstract: The characteristics of stainless steel, notably its corrosion resistance, aesthetic appearance and mechanical properties, make it ideally suited for many architectural applications. Optimum performance is achieved by taking into account these characteristics when designing in stainless steel. The paper based on the idea of sustainable development analyses the outstanding features of stainless steel.

Abstract: This paper analysis the primitive ecological ideas and techniques of the traditional dwellings in the south of Shaan’xi, suggests appropriate ecological techniques that can be used and learned in the dwelling construction of the new countryside, and point out its important significance for the inheriting of the regional architectural culture and the harmonization of the village’s ecological environment.

Abstract: The aim of this paper is to study the thermal heat transfer through a 33 cm brick wall, typical of old houses in Lille, a northern French town. First, the wall was studied in a steady state case in order to determine its equivalent resistance using the electrical analogy. Then, the wall is replaced by an equivalent homogeneous wall in order to compare the 1D and the 3D thermal transfer. The results show a perfect consistency between the two models, representing a big advantage when other layers are added to the model like thermal insulation and facing.

Abstract: In this paper, we propose a two-stage energy saving control algorithm to resolve the visual comfort control problem of building energy management systems (BEMS). The first stage control method consists of a fuzzy controller to control the venetian blind so as to exploit the outdoor luminance as much as possible while avoiding the sun glare. To remedy the possible imperfection caused by the fuzzy controller, a follow up fine tuning step is designed to adjust the outputs of the venetian blind resulted from the fuzzy controller. The second stage control is to determine whether to turn on the light based on the luminance measured by the sensor after the first stage control so as to save electricity. We have simulated the proposed two-stage control algorithm and demonstrate that the electricity saving can be up to 61% in the tested room.