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Bernhold, Torben (author), Wiesweg, Niklas (author), Löhmer, Thomas (author), Lill, Susanne (author)Background and aim - The objective and research question is to measure the satisfaction of internal customers with various real estate services in the context of the operational utilization phase. Methods / Methodology - Methodologically, the study is based on the context-related application and use of the structural equation model for measuring...conference paper 2022
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Antony, J. (author), Al-Bahar, S. (author), Jayasree, C. (author), Al-Arbeed, A. (author), Behbehani, Muntaha H. (author), Rasheed, Zakiah A. (author)Volcanic ash blended cement based concrete are known for its better performance in terms of strength and durability, especially in marine environments where hot and cold climatic conditions along with chloride and sulphate attacks are detrimental for the construction materials. Since the properties of volcanic ash will vary with region to region...conference paper 2021
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Zhang, Jingxiao (author), Ma, Yuwei (author), Zheng, Jiazheng (author)The widespread application of alkali-activated fly ash/slag (AAFS) concrete requires satisfaction of a series of performance criteria both from its early age properties (e.g. workability, strength) and long-term stability. In this study, long-term (till 180 days) natural chloride diffusion tests were conducted to evaluate the chloride diffusion...conference paper 2021
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Bediako, M. (author), Opoku Amankwah, E. (author), Valentini, L. (author)Clamp-firing system is a cost-effective technology used to produce burnt clay bricks in many West African countries including Ghana. However, this firing system generates between 7%- 15% of waste in a form of burnt broken bricks and with time creates disposal problems. In this work, burnt clay broken bricks were sampled and pulverised to 75...conference paper 2021
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Chen, Yun (author), Dolado, Jorge S. (author), Yin, Suhong (author), Yu, Qijun (author), Kostiuchenko, Albina (author), Li, Zhenming (author), Ye, Guang (author)The understanding of sodium aluminosilicate hydrate (N-A-S-H) gel is still limited due to its complex and amorphous structure. Recently, molecular dynamics simulation has provided a unique opportunity to better understand the structure of N-A-S-H gel from nanoscale. In this work, the N-A-S-H gel structure was obtained by simulating the...conference paper 2021
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Jin, Peng (author), Wang, Ruixing (author), Zhang, Siyi (author), Dong, Hua (author), Chen, Chun (author)Carbonation has been proven to be a promising way to improve the mechanism properties and durability of steel slag products. CA bacteria can promote the hydration of CO2. In this study, one kind of alkali-resistant CA bacteria was chosen to investigate its effects on the carbonation process of γ-C2S. Results showed that bacteria could increase...conference paper 2021
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Chen, Chen (author), Zheng, Qi (author), Jiang, Jinyang (author)In this paper, composite material C-S-H/PEG1000 was prepared by multi-scale porous material C-S-H as support and phase change material (PCM) PEG1000 by melt blending, so that it can reduce hydration heat of cementitious system utilizing the characteristics of releasing and storing energy of PCM. TEM, IR, DSC-Tg, BET, MIP and various other...conference paper 2021
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Effect of reactive aggregate on the early age reaction of water-glass activated slag/fly ash mortarsWang, Wei (author), Zhang, Shizhe (author), Guang, Ye (author), Noguchi, Takafumi (author)Alkali activated materials (AAMs) have received worldwide attention due to its lower embodied energy and environmental impact than that of traditional cementitious materials. However, the activators with high alkalinity may raise the risk of alkali silica reaction (ASR) induced deterioration when reactive aggregates are used, which thereby...conference paper 2021
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Atazadeh, Behnam (author), Rajabifard, Abbas (author), Kalantari, Mohsen (author), Shin, Jihye (author)There has been a significant growth of multi-owned developments in cities around the world. These developments include a combination of different types of residential and commercial uses of urban spaces. Common property areas in multi-owned developments typically include a wide range of shared spaces and facilities. Clear and correct delineation...conference paper 2018
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- Winkler, P. (author), Salehi Sadaghiani, M.R. (author) conference paper 2017
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Muldoon-Smith, Kevin (author), Greenhalgh, Paul (author)Commercial real estate vacancy is a key indicator of property market efficiency, economic performance and urban resilience. However, there has been little conceptual reflection into the abstract notion of vacancy beyond binary distinctions of natural and structural vacancy. Although useful simplifying meta-concepts, neither accounts for the...conference paper 2017
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Drewniok, Michał P. (author), Dunant, Cyrille F. (author), Allwood, Julian M. (author), Cullen, Jonathan M. (author)With growing pressure on the construction industry to be more resource efficient, to reduce waste and to lower embodied carbon, material reuse strategies are critical to meet targets, especially for steel. Indeed, steel recycling is an energy and carbon intensive process, offering only approximately 50% energy savings [1] and 75% [2, 3] over new...conference paper 2017
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Xiao, Jianzhuang (author)Abstract only. - This report firstly presents the current state of construction and demolition (C&D) waste generation in PR China. It is found that the composition of C&D waste in mainland China is much different from other countries, leading to some difficult on the aspect of waste concrete recycling. As a result, in China, some reclamation...conference paper 2017
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Pacheco, J. (author), de Brito, J. (author), Chastre, C. (author), Evangelista, L. (author)This paper investigates whether the model uncertainty of reinforced recycled aggregate concrete (RAC) beams subjected to bending differs from that of reinforced natural aggregate concrete (NAC) beams. An introductory remark concerning the importance of the codification of RAC structural design is made and notions concerning model uncertainties...conference paper 2017
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Peters, M.G.J.M. (author), Kleinjan, J.A. (author), Koster, A. (author)During the last decade, at least eight earthquakes occurred in the Northern Netherlands with a magnitude of 3 or higher on the Richter scale. These earthquakes are not tectonic but induced by natural gas production from the Groningen Gas Field. Before that time there were no earthquakes in Groningen with such magnitudes. Research conducted by...conference paper 2015
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Reinders, K.J. (author), Schoenmaker, B. (author), Nohl, W.A. (author)New vertical steel storage tanks founded on a shallow foundation of a crushed rock ring are planned at the same location of former storage tanks. The dimensions, loads and foundation of the new tanks are identical to the old tanks which were erected 40 years ago and demolished a few years ago. Despite the fact that the new tanks are identical to...conference paper 2015
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Seawsirikul, S. (author), Chantawarangul, K. (author), Vardhanabhuti, B. (author)Excessive differential settlement along bridge approach is commonly found in the lower central region of Thailand. To overcome the differential settlement problem, engineers have developed different types of bridge approach structure and improved design procedures. Two types of bridge approach structure are currently used in Thailand, including...conference paper 2015
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Vardhanabhuti, B. (author), Chantawarangul, K. (author), Seawsirikul, S. (author)Differential settlement along bridge approach structure is one of the continuing problems for highway construction in Bangkok and its vicinities due to soft ground foundation. To minimize the differential settlement and serviceability failure, an approach slap on piles with varies pile length is a current geotechnical engineering practice for...conference paper 2015
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Oung, O. (author), Brassinga, H. (author)A feasibility study was carried out on the redesigning of an existing quay wall of a core harbor in the Netherlands, which was more than 45 years old. The geotechnical behavior of the existing quay wall, especially because of its age, as a response to the maximum load change is undoubtedly the uncertain parameter here. The design and redesign...conference paper 2015
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Sutoh, A. (author), Maruyama, O. (author), Kanakiyo, H.T. (author), Sato, T. (author)This paper proposes the tunnel lining deterioration model which is based upon actual inspection data in order to carry out strategic maintenance and to rationalize life cycle cost analysis for tunnel structures. The evaluation value of deteriorating tunnel structures is a non-stationary stochastic process, and reliability problems of such...conference paper 2015