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Ewelina Pochodyla-Ducka, Katarzyna Glinska-Lewczuk and Agnieszka Jaszczak
Stormwater quality in an urban watershed can be influenced by several factors, including land use patterns, atmospheric deposition, and human activities. The objective of this study was to investigate spatial and temporal changes in stormwater quality an...
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Xu Dong, Mingdong Wang, Minyuan Song and Ning Hou
The backfilling of lime soil in ultra-deep and ultra-narrow foundation trenches is a difficult construction link, and ordinary-cemented soil has drawbacks, including poor strength, impermeability, and frost resistance. To solve these problems, fly ash (F...
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Tianlun Li and Yonggen Wu
In this paper, three modified tetraethyl orthosilicate surface treatment agents were prepared by using tetraethyl orthosilicate (TEOS) as the preparation monomer, isobutyltriethoxysilane (IBTS) as the hybridizer, and acrylic acid, phosphoric acid, and hy...
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Chang Chen, Ruyi Zhang, Li Zhou and Yubin Wang
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Styliani Papatzani and Kevin Paine
With the current paper three nano-Montmorillonites (nMt) are applied in cement nanohybrids: an organomodified nMt dispersion, nC2; an inorganic nMt dispersion, nC3; and an organomodified powder, nC4. nC4 is fully characterized in this paper (X-ray diffra...
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Mazen J. Al-Kheetan, Seyed Hamidreza Ghaffar, Said Awad, Mehdi Chougan, Juliana Byzyka and Mujib M. Rahman
Portland Cement Concrete (PCC) pavement was studied with incorporation of an environmentally friendly eco-additive, sodium acetate (C2H3NaO2). This additive was added to PCC pavement in three different percentages of 2%, 4% and 6% of binder weight. For a...
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Mauricio López, José Tomás Castro
Pág. Page 419 - 432
Pozzolanic materials in portland cement concrete mixtures hydrate forming new calcium silicate hydrates which improve durability of concrete structures. The aim of this research was to enhance the understanding of the role of natural pozzolans in concret...
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Rodrigo Araya Gómez
The article proposes to analyze the struggle waged by the Unitary Workers Central (CUT) to reform the Labor Code inherited from the chilean civic-military dictatorship. The analysis focuses on two major moments of struggle for labor reforms: 1990 and 199...
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César Juárez, Pedro Valdez, Alejandro Durán
Pág. Page 225 - 234
This research intends to identify both inexpensive and durable construction materials. Steel, glass and polymer fibers are feasible, expensive alternatives. Natural fibers can be a real possibility for developing countries, due to the fact that these kin...
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César Juárez, Pedro Valdez, Alejandro Durán
Pág. Page 83 - 92
This research intends to identify both inexpensive and durable construction materials. Steel, glass and polymer fibers are feasible, expensive alternatives.Natural fibers can be a real possibility for developing countries, due to the fact that these kind...
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Xue Ma, Fuming Wang, Chengchao Guo and Bo Sun
An isolation layer is one of the countermeasures to promote the anti-seismic performance of tunnels. A newly invented polymeric material, non-water reacted two-component polymeric material (NRTCPM), is superior in impermeability and construction efficien...
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Klaus Voit, Oliver Zeman, Ivan Janotka, Renata Adamcova and Konrad Bergmeister
Clinker production is very energy-intensive and responsible for releasing climate-relevant carbon dioxide (CO2) into the atmosphere, and the exploitation of aggregate for concrete results in a reduction in natural resources. This contrasts with infrastru...
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Li Dai, Yanwei Chen and Xiaoli Wei
The Ormosia hosiei is a secondary protected wild plant in China, and its seed has a hardness rate of 86%. To explore the characteristics of the hard seed and the difference in seed vigor between hard seeds and the non-hard seeds of O. hosiei, the water a...
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Yan Long, Shiqi Luo, Xi Liu, Tianyue Luo and Xuejun Liu
The urban fringe area is a discontinuous spatial phenomenon that refers to the urban-rural interlacing zone which is undergoing urbanization on the fringe of the core built-up area of a large city after the emergence of industrialization. Dynamic, ambigu...
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Yang Li, Jiaqi Chai, Ruijun Wang, Yu Zhou and Xiaogen Tong
As the number of discarded tyres continues to increase, causing serious environmental problems, the need of recycling the waste tyre rubber become extremely urgent in worldwide. Today, there is an increasing focus on recyclable materials. The reuse of wa...
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M. Torres-Carrasco, F. Puertas
Pág. Page 05 - 12
Portland cement is considered an excellence building material. This is due mainly to its high performance, its good quality/price ratio and the raw materials from which it is made can be found almost everywhere in the world. However, the development of a...
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Rancés Castillo Lara, Mathieu Antoni, Adrián Alujas Díaz, Karen Scrivener, José Fernando Martirena Hernández
Pág. Page 25 - 40
Currently economical and environmental advantages of cement clinker replacement by other supplementary cementious materials are well known. For example calcined clays, such as metakaolin, have drawn special attention during recent years. It is well known...
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Carlos Videla, Juan Covarrubias, Cristian Masana Cristian Masana
Pág. Page 4 - 16
Different models reported on specialized literature have been proposed for cuntifying concrete drying shrinkage at the design stage of concrete structures. However, questions have been raised regarding their applicability to conditions different to those...
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Roman Gnatenko, Kateryna Tsyrkunova, Valeriy Zhdanyuk
Pág. 804 - 810
Cracks are one of the most widespread modes of deterioration of asphalt concrete road pavements in Ukraine. The main cause of cracking in asphalt pavements is tensile stress due to loads from vehicles as well as abrupt temperature decease and its signifi...
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