Numerical Analysis of Temperature Effect of Sunshine on Concrete Box Aqueduct by LIANG Fei

“…Under the action of summer sunshine,the aqueduct structure is in the state of internal cooling and external heat.It is of great significance to study the temperature difference and temperature stress of concrete box aqueduct under this condition.By establishing the finite element model of the aqueduct section and analyzing the temperature field and temperature stress field of the aqueduct under the influence of solar radiation and atmospheric temperature during the operation period,it can be concluded that:The effect of sunshine on the temperature of the outer surface of aqueduct structure is obvious,and the water temperature in the aqueduct mainly affects the temperature of the inner surface.The temperature difference between the inner and outer surfaces is large.The maximum temperature difference of the top plate is 23.4°C,and the peak temperature difference appear successively in the east web,top plate,bottom plate and west web.In addition,the temperature field also changes accordingly.The tensile stress on the inner surface of the top plate is the largest,which is 3.56 MPa,followed by the bottom plate,the east web and the west web.In the design of aqueduct,attention should be paid to the temperature stress caused by sunshine,and crack prevention measures should be taken to the crack prone parts.…”
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The Mechanical Properties of the Concrete Using Metakaolin Additive and Polymer Admixture by Adel Al Menhosh, Yan Wang, Yu Wang

“…Environmentally friendly and high performance concrete is very import for the applications in sewage and water treatment industry. …”
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Features of the Concrete Structure of the Structural Element Made by Additive Technology by O. V. Kabantsev, A. V. Karlin

Subjects: “…concrete…”
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Experimental research on fracture behavior of concrete after high temperature by Peng Qiu

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ASSESSING THE IMPACT OF DELAYS ON THE PRODUCTIVITY OF CONCRETE PLACEMENT BY CRANES IN NIGERIA by Olaoluwa Olatunde, Ojo Stephen Okunola, Adesanya David Abiodun

Subjects: “…concrete placement, crane, delays, impact, Nigeria, productivity…”
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The Relationship between Cementitious Composition and Properties of Ultrahigh Strength Concrete by Dehui Wang, Zhiwen Zhang

“…It is well known that supplementary cementitious materials (SCMs) have obvious effects on the properties of concrete. In order to understand the relationship between cementitious materials and properties of ultrahigh strength concrete (UHSC), the cementitious compositions of UHSC were designed by the simple-centroid design method. …”
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Review of Prediction Models for Chloride Ion Concentration in Concrete Structures by Jiwei Ma, Qiuwei Yang, Xinhao Wang, Xi Peng, Fengjiang Qin

“…Chloride ion concentration significantly impacts the durability of reinforced concrete, particularly regarding corrosion. Accurately assessing how this concentration varies with the age of structures is crucial for ensuring their safety and longevity. …”
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Influence of Concrete Creep on the Bending of a Prestressed Bridge Beam by Petr P. Gaidzhurov, Elvira R. Iskhakova, Nina A. Saveleva

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Evaluation of Relationship between Water Absorption and Durability of Concrete Materials by S. P. Zhang, L. Zong

“…Environment has significant effects on the water absorption of concrete materials. This paper presents an experimental study of the influence of water absorption on the durability of concrete materials. …”
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A “Non-Invasive” Technique for Qualifying the Reinforced Concrete Structure by Antonella Guida, Antonello Pagliuca, Alessandro Tranquillino Minerva

“…The research focuses on the restoration of reinforced concrete buildings that begin to show signs of decay and deterioration. …”
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Study on Adiabatic Temperature Rise Reflecting Hydration Degree of Concrete by Yanhua Han, Shaojun Fu, Shufa Wang, Zuowei Xie

“…The thermal model and the relevant parameters of concrete are the most important issues to study the space-time characteristics of temperature field, which are also the theoretical foundation of temperature control and crack prevention for the mass concrete structures. …”
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Mechanical Properties of Fiber Reinforced Lightweight Concrete Containing Surfactant by Yoo-Jae Kim, Jiong Hu, Soon-Jae Lee, Byung-Hee You

“…Fiber reinforced aerated lightweight concrete (FALC) was developed to reduce concrete's density and to improve its fire resistance, thermal conductivity, and energy absorption. …”
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Determination of fracture toughness in plain concrete specimens by R curve by Chbani Hamza, Saadouki Bouchra, Barakat Mohamed

“…Experimental tests and computational algorithm are implemented to investigate crack growth phenomena in C0.7 concrete. Firstly, three point bending tests are carried out on normalized prismatic specimens notched laterally (SENB), then, computational calculation was developed to calculate the concrete toughness on the basis of R-curve method. …”
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Application of Distorted Concrete in the Construction of Baise Project's Main Dam by ZHANG Zheng-guo, REN Yong-yi, WANG Hong-lang, HU Chun-bao

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Seismic Behavior of Short Concrete Columns with Prestressing Steel Wires by Deng Zong-Cai, Jumbe R. Daud, Li Hui

“…The seismic behavior of short circular reinforced concrete columns was studied by testing seven columns retrofitted with prestressing steel wire (PSW), subjected to combined constant axial compression and lateral cyclic load. …”
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Research on Slope Angle of Base for Asphalt-Concrete Core Dam by FAN Dongyang, WANG Junjie, LI Yuqiao

Subjects: “…asphalt-concrete core dam…”
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Study on Compressive Strength of Quarry Dust as Fine Aggregate in Concrete by K. Shyam Prakash, Ch. Hanumantha Rao

“…The availability of sand at low cost as a fine aggregate in concrete is not suitable and that is the reason to search for an alternative material. …”
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SYSTEM FOR CONTROLLING ELECTRIC DRIVE OF ASPHALT CONCRETE MIXING PLANT by A. S. Surmak, I. F. Kuzmitsky, I. O. Orobey

“…It is proposed to evaluate quality of asphalt concrete mixture through definition of current component variable of a drive motor and measurement of its derivative sign. …”
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Fatigue Performance of Reinforced Concrete T-Girders under Cyclic Loading by Jinquan Zhang, Bing Bai, Kechao Zhang, Shoushan Cheng, Shangchuan Zhao, Lei Wang, Chenxu Zhuang

“…This paper examines the performance of reinforced concrete girders under cyclic loading. Seven T-girders were casted and tested. …”
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Enhancing performance of recycled aggregate concrete with supplementary cementitious materials by Abba Fatiha, Ezziane Karim, Adjoudj Mhamed, Abed Farid

Subjects: “…Recycled aggregate concrete…”
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