共查询到19条相似文献,搜索用时 71 毫秒
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在爱上马来西亚的马来亚住宅以后.委托人鲍勃和安琪拉希望在兰卡威岛的小山丘上建造一座木构住宅。我们认为.用全新的木材来建造住宅并非一种具有可持续性的选择,新采伐的木材如果未经过恰当的干燥.则更容易出现收缩和弯曲等情况。 相似文献
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随着木材加工行业的蓬勃发展,中国已成为世界最太的天然木材消耗国之一。在全球木材资源日益匮乏的今天,如何善用珍贵的木材资源,提高木材的综合利用率等诸多问题“考问”着全世界木材加工工业。作为木材消耗太户的木地板行业自然首当其冲。有鉴于此,国家通过宏观调控,在产业指导政策上已进行了“限制”。
随着今年4月1日国家对实木地板消费税的正式征收和木材价格的不断上涨,减少珍贵木材的消耗,切实有效地向全社会推广高木材综合利用率的各种实木地板替代产品。在满足人民群众日益增长的家居装饰需求的同时,堆持人与自然之间和谐,走可持续发展之路已是中国地板行业的社会使命。已在中国市场获得普遍认同的强化复合地板和正在积极推广中的实木多层复合地板无疑是地板行业可持续发展的未来所在。
同强化木地板的太众化、普及化相比,实木复合木地板在中国市场的认识度和市场占有率不高。如何促进早已在欧美发达国家的家庭中太范围使用的实木复合地板在中国走向普及,是当前中国地板行业的焦点问题之一。 相似文献
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西贝柳斯音乐厅,拉赫蒂,芬兰 总被引:1,自引:0,他引:1
在韦西湖(Vesijarvi)湖边,靠近拉赫蒂(Lahti)城,矗立着芬兰新建的西贝柳斯大厅,这是一个世界级的艺术表演殿堂,拉赫蒂 (Sinfonia Lahti) 因为在这里演奏了西贝柳斯的乐曲而成名。它无论是在建筑上还是结构上都给人留下了难以磨灭的印象,也许建筑物最令人惊讶的地方是它的结构并不是较为典型的混凝土,而是木材。细部松散而简单,建筑概括了芬兰人对公共建筑中创造性使用木材的见解。不过这样的成果并不容易获得。工程面临声学上和结构上的设计挑战,需要研究和改造世界各地实践过的最新的木结构设计和建造技术。这样的研究和试验… 相似文献
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《中国室内装饰装修天地》2012,(8):155-155
2012年6月2日,InteriorDesignChina受法国软木协会的邀请.加入了为期七天的法国木材之旅的活动。受邀的媒体代表团来自新加坡、印度、印度尼西亚、日本、中国以及法国等地区.七天的行程紧张而充实.让大家更多的了解到法国木材行业的发展及先进技术。 相似文献
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抓住机遇,加快发展化学建材山东省建材局刘世敏化学建材是重要的新型建筑材料。有人预言,它将是继钢材、木材、水泥之后的第四大建筑材料,它具有节约能源、代替钢材、木材、提高建筑工程使用功能等优点。主要包括塑料管材、塑料门窗、防水材料、装饰装修材料、建筑涂料... 相似文献
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中国传统建筑的精华,不仅在于坡屋顶、空间造型、园林造景等,也在于对于木材及木构件的数千年的累积使用。现代在材料日新月异的情况下,木材料因为其局限性可能将成为一种边缘性材料。通过与其他材料的和谐搭配,木材的运用前景或许将更为广泛。 相似文献
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这座建筑以其独特的材质和简洁的造型在约恩苏大学的校园中备受瞩目,建筑物的外形就像一个方正的木箱子,特别之处在于它的入口,一个实木墙体围合的前院,这些木材是从废弃的民宅上拆除下来的。 相似文献
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体验花园位于克拉科夫市东部波兰飞行员公园的绿植区内。6hm2的景观设计是基于现有道路和树木的布局设计的。该项目的设计概念将开放式公共公园的娱乐性与教育性相结合。在道路边设置了叶状的平台,用于展示和体验物理学原理。每个平台饰以不同的自然材料(如石材、砂砾、沙子、木材),以及不同的物理装置。还有两栋1层的建筑及大型露台,作为会议、办公和咖啡。 相似文献
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There is increasing public concern about environmental contamination from preservative treated wood due to release of toxic preservative components to the environment. Leaching of wood preservatives from treated wood in service can be affected by a number of factors such as wood and preservative treatment characteristics and properties of water and soil substrate in which treated wood is placed i.e. salinity, pH, and temperature. Laboratory leaching tests usually require distilled or deionized water for leaching procedure however treated wood is generally exposed to different types of water and soil conditions. This study evaluates the release of copper, chromium and arsenic elements from chromated copper arsenate (CCA)-treated wood exposed to either distilled water, tap water, sea water or humic acid. Leaching tests were conducted in laboratory conditions using wood blocks treated with CCA wood preservative at either low or high retention levels. Results showed that tap water resulted in less preservative release when compared to the other leaching media used in the study. Humic acid was the most effective medium causing more element leaching. The percentage of components leached was always higher in wood blocks treated at the high retention in comparison with the low retention level. Our results from the leaching tests can be important in developing more realistic standard leaching methods to evaluate preservative components to be released from treated wood. 相似文献
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Bennett CM Dharmage SC Matheson M Gras JL Markos J Mészáros D Hopper J Walters EH Abramson MJ 《The Science of the total environment》2010,409(2):294-299
Wood smoke exposure has been associated with adverse respiratory health outcomes, with much of the current research focused on wood smoke from domestic heating and cooking. This study examined the association between respiratory symptoms and outdoor wood smoke in Launceston, Tasmania, where ~ 30% of homes use wood burners for domestic heating. This ecological study examined data from participants of the 2004 Tasmanian Longitudinal Health Study postal survey and compared the prevalence of respiratory symptoms in Launceston (n = 601) with that in Hobart (n = 1071), a larger Tasmanian city with much less wood smoke. Multivariate logistic regression models were used to investigate the associations of interest while adjusting for gender, atopy, history of allergic disease and current smoking status. There were no significant differences in symptom prevalence between Launceston and Hobart. Two subgroup analyses, which examined participants with pre-existing chronic respiratory disease, and those who reported actively using a wood burner in their home, also did not find significant differences. Any impact of wood smoke on non-specific respiratory symptoms might have been overshadowed by other important determinants of respiratory health, such as vehicle exhaust and tobacco smoking, or were too small to have been detected. However, the lack of detectable differences in symptom prevalence might also reflect the success of regulatory action by local governments to reduce wood smoke emissions in Launceston. The results of other epidemiological studies support an association between ambient wood smoke exposure and adverse respiratory health. Further investigations of wood smoke exposure in Australian settings are needed to investigate the lack of significant associations found in this study, especially studies of indoor air quality and health impacts in children and elderly populations. 相似文献
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《Construction and Building Materials》2007,21(9):1879-1885
Wood polymer composite (WPC) was obtained by vinyl monomers such as styrene (ST), methylmethacrylate (MMA), and their mixture (50:50; volume:volume) of treated sapwood of Scots pine (Pinus sylvestris L.). Boric acid (BA) and borax (BX) mixture was impregnated into wood at 1% concentration prior to monomer treatment. Wood polymer composite with and without BA and BX mixture pretreatment was evaluated in terms of some physical, biological, mechanical, and fire properties.Vinyl monomers considerably improved physical properties of wood such as increased antiswelling efficiency (ASE), specific gravity (SG), and reduced water absorption (WA) levels of wood. Modulus of elasticity (MOE) and modulus of rupture (MOR) were also higher than that of untreated control specimens. The treated wood proved to be resistant against decay fungi, Tyromycetes palustris and Coriolus versicolor. Boric acid and borax mixture pretreatment imparted WPC total resistance against both decay fungi. Although, ASE, MOE, and MOR levels of WPC pretreated with BA and BX mixture were reduced in some extent, it improved fire resistance of wood. 相似文献
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Carolina Pinto Rebecca Ing Ben Browning Vinicius Delboni Hazel Wilson Dominic Martyn Gemma L. Harvey 《Water and Environment Journal》2019,33(3):353-365
Large wood (re)introduction can deliver multiple benefits in river restoration, but there is a dearth of the detailed and longer‐term post‐project monitoring and evaluation required for improving best practice. We present findings from an academic partnership approach to post‐project evaluation, based on successive MSc research projects on restored large wood in the Loddon catchment, UK. Field and modelling data reveal: (i) key differences in large wood features between restored and natural reaches; (ii) increased hydraulic retention and changes to mesohabitats associated with large wood; (iii) differences in macroinvertebrate community composition around large wood but a lack of site‐level effects; (iv) interactions between macrophytes and large wood that may be specific to restored reaches; (v) a need for further field and modelling studies to inform the accurate representation of large wood in hydraulic models. Some key challenges in partnership working are identified to aid planning and effectiveness of future collaborations. 相似文献
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The application of wood ash from biofuel sources to the forest has been suggested as a source of nutrients for trees and for restoration of acidified soils and surface waters. Studies on the effects of wood ash on aquatic organisms and ecosystems are, however, few. This study investigated the effects of wood ash (0.1-10 g l(-1)) on the freshwater moss Fontinalis antipyretica Hedw., which has previously been shown to be a sensitive test organism for assessing environmental pollution. After nine weeks of treatment with wood ash, a significant effect of enhanced stem growth was observed at higher concentrations (1-10 g l(-1)). The concentration of wood ash was also correlated with the growth of secondary branches. Photosynthesis (oxygen evolution after 4 h of exposure to wood ash) was significantly lower in the alkaline treatments (no pH adjustment) compared to the treatments with neutral wood ash solutions (pH adjusted to 7.5). Furthermore, photosynthesis in the alkaline wood ash treatments was significantly lower compared to the control. The ratio between the optical density value before and after acidification (OD(665/665a)) was higher for all wood ash concentrations compared to the control. The OD(665/665a) values ranged from 1.52 to 1.61 and there was a difference, however not significant, between the alkaline and the neutral treatment at 10 g l(-1) wood ash. This study clearly demonstrated that wood ash may be beneficial for F. antipyretica at moderate concentrations (0.5-5 g l(-1)), particularly when a sudden increase in pH is avoided. 相似文献
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Chromated copper arsenate (CCA) is currently the most commonly used wood preservative in Korea. Questions, however, have been raised regarding the potential environmental impacts of metal leaching from CCA-treated wood to soil. Although a number of researchers from other countries have reported that chromium, copper, and arsenic do leach from CCA-treated wood over time, to date few field studies have been performed on those metals in soils adjacent to CCA-treated wood structures in Korea. The present study was conducted to determine the lateral and vertical distributions and accumulation of chromium, copper, and arsenic in soils collected from CCA-treated wood structures. A total of fifty-five composite soil samples were collected from four CCA-treated wood structures of approximately one year in age. The samples were analyzed for physicochemical properties as well as for the total chromium, copper, and arsenic concentrations. The chromium, copper, and arsenic concentrations in soil samples adjacent to the structures were as high as 79.0, 98.9, and 128 mg/kg, respectively, compared to background soil samples (48.2, 26.9, and 6.27 mg/kg, respectively). Arsenic was more mobile in soil than chromium and copper. The concentration gradient of arsenic in soil was observed only to the depth of approximately 5 cm in one year of outdoor exposure, whereas chromium and copper apparently remained near the surface (approximately less than 1 cm) after their release. Future efforts should be made to observe seasonal impacts on the release of metals and incorporate metal speciation into determining more detailed mobility and distribution. 相似文献
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Removal of Cu, Cr and As metals from chromated copper arsenate (CCA) treated yellow pine wood samples with three different dimensions were investigated by extraction with oleic acid at four different pH levels. The concentrations of Cu, Cr and As were determined by XRF. The effects of pH, dimension and duration on remediation of CCA-treated wood samples were determined. Oleic acid was found to be very effective to remove copper, chromium and arsenic from CCA-treated wood samples especially at lower pH levels (pH=2.00 and 2.50). In addition, the best models estimate copper, chromium and arsenic leaching from CCA-treated wood samples by oleic acid remediation were determined by step-wise regression analysis. 相似文献
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Wood can be protected from attack by pests with preservative treatment of the many different preservatives available for wood; borates are generally preferred for indoor uses and can be used to treat solid wood and engineered wood composites. Although treated panels make up a large part of the plywood market, treatment with some wood preservatives has been known to interfere with the bond integrity of glued wood specimens. In this study, the possible effects of borax and boric acid treatment on adhesive wettability and surface roughness of veneers and bond strength and hygroscopicity of plywood panels were tested. No clear changes in surface roughness after borax and boric acid treatment were observed. Poor wettability on the surfaces of alder and beech veneers with UF resin after borate treatments was obtained. Bond strength values of plywood panels decreased and equilibrium moisture content (EMC) of plywood panels increased after borate treatment. 相似文献