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Bruna A. Silva, Ana Paula Ferreira Pinto, Augusto Gomes and António Candeias
This paper evaluates the influence of water content and mixing conditions (mixing time and sequence of addition of the constituents) on the fresh state properties of lime-based materials and their impact on the hardened state properties. Higher water con...
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Xiaohui Yan, Abdolmajid Mohammadian and Xin Chen
In some outfall systems, wastewaters are discharged into ambient water bodies using rosette-type diffusers in the form of multiple buoyant jets, and it is essential to simulate their mixing characteristics for practical applications and optimal design pu...
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Xiaohui Yan and Abdolmajid Mohammadian
A new approach based on the multigene genetic-programming (MGGP) technique is proposed to predict initial dilution of vertical buoyant jets subjected to lateral confinement. The models are trained and tested using experimental data, and the good matches ...
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Taewan Kim, Sungnam Hong, Ki-Young Seo and Choonghyun Kang
This study applies a new method of mixing colloidal nano-silica (CNS). Previous studies have used powdered nano-silica or colloidal nano-silica and applied a binder weight substitution method. In this study, we tried to use ordinary Portland cement (OPC)...
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S. Jagan, T. R. Neelakantan, P. Saravanakumar
Pág. 236 - 248
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Yanmei Ding, Jianhai Zhao, Lei Wei, Wenpu Li and Yongzhi Chi
Magnesium hydroxide continuous coagulation process was used for treating simulated reactive orange wastewater in this study. Effects of mixing conditions and retention time on the coagulation performance and floc properties of magnesium hydroxide were ba...
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Cassandra J. Gaston, John F. Cahill, Douglas B. Collins, Kaitlyn J. Suski, Jimmy Y. Ge, Anne E. Barkley and Kimberly A. Prather
Marine aerosols are a globally significant contributor to aerosol-cloud-climate interactions; however, the impact that different sources of pollution and natural emissions from the ocean have on the water uptake properties of marine aerosols remains larg...
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Pawel Lisowski and Michal A. Glinicki
The wide use of multi-component cement of highly reduced Portland clinker factor is largely impeded by detrimental changes in the rheological properties of concrete mixes, a substantial reduction in the early rate of cement hardening, and sometimes the i...
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Zoran Kovac, Vedran Krevh, Lana Filipovic, Jasmina Defterdarovic, Borna-Ivan Bala? and Vilim Filipovic
This paper presents research related to the estimation of the precipitation fraction in the soil water of a sloped vineyard at the SUPREHILL Critical Zone Observatory (CZO) in Zagreb, Croatia. Numerous investigations have shown that exploration of hillsl...
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Ravi Goyal and Victor De Gruttola
This paper presents a general recursive formula to estimate the number of labeled graphs as well as details to evaluate the formula for the following graph properties: number of edges (graph density), degree sequence, degree distribution, classification ...
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Yong Sup Ihn, Zaeill Kim and Su-Yong Lee
Subwavelength optical micro/nanofibers have been widely used as basic building blocks in the field of quantum sensing and quantum light source by virtue of their properties which include pronounced evanescent field, large surface area, and small optical ...
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Armen Ter-Martirosyan, Vitalii Sidorov and Evgeny Sobolev
This research investigates the mechanical properties of soil-cement specimens ranging from ultrasmall to large values of shear strain at dynamic loading. The nonlinear behavior of soil cement exposed to dynamic loading in a wide range of changing shear s...
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Annafi Qaudri Babatunde, Eberemu Adrian Oshioname, Yohanna Paul and Osinubi Kolawole Junwolo
The study evaluated the effect of elapsed time after mixing on the strength properties of lime and iron ore tailings (IOT) treated black cotton soil (BCS) (an expansive tropical black clay) as road construction material. BCS was treated with 0, 2, 4, 6, ...
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Jaehyun Lee, Taegyu Lee, Hyeonggil Choi and Dong-Eun Lee
There have been many studies on the effect of durability and compressive strength on the increase of the mixing rate of admixtures. However, there is no research that can provide a guide on the optimal mixture proportions for maintaining compressive stre...
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Jozef Junak and Alena Sicakova
The experiment aims to test the specific way of producing concrete with recycled concrete aggregate (RCA). To reduce its negative impact on the concrete properties, two different ways of treatment of the RCA with geopolymer slurry were applied?coating du...
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Arwa A. AL-Huqail, Mostafa A. Taher, Ivan ?iric, Madhumita Goala, Bashir Adelodun, Kyung Sook Choi, Piyush Kumar, Vinod Kumar, Pankaj Kumar and Ebrahem M. Eid
With the increasing demand for electronic devices that use batteries, e-waste is also becoming a major threat to the environment. Battery e-waste contains hazardous heavy metals that affect the health of the soil ecosystem. Thus, the present study evalua...
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Jie Gao, Yuquan Yao, Jinhua Huang, Jiangang Yang, Liang Song, Jing Xu and Xinhu Lu
When using a high concentration of reclaimed asphalt pavement (RAP) in a recycled hot-mix asphalt mixture (RHMA), the degree of blending of the reclaimed asphalt binder significantly affects the performance of the RHMA. Hence, it is essential to know the...
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Oleg Rudenko,Oleksandr Bezsonov,Oleh Lebediev,Nataliia Serdiuk
Pág. 44 - 52
The problem of identification of non-stationary parameters of a linear object, which can be described by the first-order Markov model, with non-Gaussian interference is considered. The identification algorithm is a gradient minimization procedure of the ...
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Dong Soo Ahn, Kyu Hwan Oh, Jin Sang Park and Sang Keun Oh
As opposed to asphalt emulsion waterproofing membrane, Synthetic Rubber Polymer Gel (SPRG) waterproofing materials are not heated prior to installation in concrete structures. SPRG materials are typically required to undergo a screw-mixing process to tem...
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Ana María Fernández-Jiménez, Angel Palomo, Cecilio López
Pág. Page 123 - 131
Nowadays Portland cement concrete is the most widely used building material. Its mechanical properties, the quality/price ratio, performance in general, have contributed to the success ofthis material along 20th century. However the process of fabricatio...
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