Results 1 to 10 of about 1,418,727 (199)

Shear Behavior of Hollow Concrete Block Masonry with Precast Concrete Anti-Shear Blocks

Advances in Materials Science and Engineering, 2019
In order to improve the shear behavior of hollow concrete block masonry, precast concrete anti-shear blocks were proposed to enhance the shear strength of hollow concrete block masonry.
Xinlei Yang, Hanchen Wu, Jianxin Zhang, Hailiang Wang   +3 more
doaj   +2 more sources

UHF RFID Tags Installation Methods for Vehicle Navigation on Paved and Unpaved Roads [PDF]

Sensors
This study investigated the communication performance of ultrahigh-frequency radio-frequency identification (RFID) systems with embedded RFID tags on challenging roads. Surface-mounted RFID tags are used for vehicle guidance.
Gabriela Maria Castro Gonzalez, Takayuki Kawaguchi, Dai Nakamura, Kenji Kurokawa, Takeshi Kawamura   +4 more
doaj   +2 more sources

Implementation and evaluation of the underwater crack repair in the hollow concrete block of the gravity wharf [PDF]

E3S Web of Conferences, 2021
Concrete block quay wall is the most popular type of structures in the gravity wharf. The concrete block can be generally categorized into two types: solid and hollow concrete blocks.
Gu Hao, Sun Ping
doaj   +1 more source

Utilisation of dewatered extracted soil in concrete blocks produced with Portland cement or alkali-activated slag: Engineering properties and sustainability

Case Studies in Construction Materials, 2021
Disposal of soil from foundation excavation in the construction industry has been recognised as a critical challenge for environmental protection. This study investigates the feasibility of incorporating dewatered extracted soil (DES) in concrete blocks ...
Wenjie Luo, Shu Liu, Yuan Jiang, Xiwen Guan, Yunfeng Hu, Dongdong Hu, Bo Li   +6 more
doaj   +1 more source

Use of concrete block waste as aggregate in structural concrete block [PDF]

Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental, 2020
A construção civil gera uma grande quantidade de resíduos e, consequentemente, enfrenta problemas no destino final desses materiais. Entre os materiais mais comuns, podemos destacar o concreto como o segundo maior gerador de resíduos, sendo, portanto, um problema para a sociedade.
Ana Paula Favretto Bussolaro, Elaise Gabriel, Gabriela Meller, Ursula Maira Maciel Rigon, Marlon Leão   +4 more
openaire   +1 more source

Recycling Waste Paver Blocks in the Manufacture of New Concrete Paver Blocks and Building Bricks

Applied Sciences, 2022
This study investigates the feasibility of recycling various waste paving blocks as raw materials for concrete. The recycling rate of waste blocks in Korea remains around 11%. Therefore, three types of waste paving blocks, i.e., recycled clay-, granite-,
Jeonghyun Kim, Namho Kim
doaj   +1 more source

Use of bottom ash as part replacement of sand for making concrete blocks

Journal of Building Materials and Structures, 2021
Coal-based thermal power plants all over the world facing serious problems of handling and disposal of the ash produced. The productive use of coal Bottom Ash (BA) is the best way to alleviate the problems associated with its disposal.
Satish Sharma, V V Arora, P N Ojha, Brijesh Singh, Vikas Patel, Adarsh Kumar N S   +5 more
doaj   +1 more source

Shear transfer strength estimation of concrete elements using generalized artificial neural network models

Journal of the Mechanical Behavior of Materials, 2023
Based on published test findings, this article outlines the use of artificial neural networks (ANNs) to forecast the efficiency factor of shear transfer strength in concrete. Backpropagation neural networks with feed-forward have been employed.
Zayan Hend S., Mahmoud Akram S., Hamdullah Dhifaf N.   +2 more
doaj   +1 more source

Mechanical Behavior of Compression-Compacted Dry Concrete Paver Blocks Making Use of Sea Sand and Seawater

Buildings, 2023
Dry concrete is a kind of concrete whose fresh mixture has almost no flowability and is widely used in the production of small-size unreinforced compression-compacted concrete blocks in plants.
Pengcheng Guo, Qicheng Wang, Jia Liu, Tengfei Wang, Junliang Zhao, Dongyan Wu   +5 more
doaj   +1 more source

Detection of Reinforced Concrete Blocks Using Two-Port Microwave CSRR Sensor

IEEE Access, 2022
In this paper, the design, fabrication and testing of a two-port transmission line-based microwave sensor for the detection of various structural concrete bricks is presented.
Mohammed M. Bait-Suwailam, Abdelazim M. Ahmed, Thamer S. Almoneef   +2 more
doaj   +1 more source