Results 231 to 240 of about 3,990,489 (310)

Strength Classes of Concrete versus Strength Classes of Fibre Concrete

Solid State Phenomena, 2016
Basic characteristics of each produced concrete and fibre reinforced concrete are characterized by the compression strength recorded by the standard sets of tests performed on cylinders and cubes. In addition, for the fibre reinforced concrete, the characteristic tensile strength at formation of microcracks and cracks of standard widths is required ...
Jan Vodicka, Vladimír Křístek, Václav Ráček   +2 more
openaire   +1 more source

Development of rubberized geopolymer concrete: Strength and durability studies

Construction and Building Materials, 2019
Nowadays, an exigency has gone through the roof for cementitious material. Unfortunately, the present process of production of Ordinary Portland Cement (OPC) is found associated with pessimistic impacts on environments because of an emission of immense ...
Salmabanu Luhar, S. Chaudhary, I. Luhar
semanticscholar   +1 more source

Bond behaviour of high-strength steel rebars in normal (NSC) and ultra-high performance concrete (UHPC)

, 2021
Bond is the interaction and force transfer between rebar and concrete, which directly affects the performance of concrete structures. On the other hand, innovations in the production of ultra-high performance concrete (UHPC) and its unique advantages ...
S. Khaksefidi, M. Ghalehnovi, J. Brito
semanticscholar   +1 more source

Real-Time Monitoring of Early-Age Concrete Strength Using Piezoceramic-Based Smart Aggregates

Journal of Aerospace Engineering, 2019
It is well known that concrete is the most common type of structural material, and a proper estimation of concrete strength in its early age can provide guidance for staged concrete constru...
Q. Feng, Yabin Liang, G. Song
semanticscholar   +1 more source

Novel approach to improve crumb rubber concrete strength using thermal treatment

, 2019
The concept of using crumb rubber as a partial replacement of natural aggregate in concrete to produce rubberised concrete and reduce environmental impacts has been a subject of research for many years.
El-Sayed Abd-Elaal, S. Araby, J. Mills, Osama Youssf, R. Roychand, Xing Ma, Y. Zhuge, R. Gravina   +7 more
semanticscholar   +1 more source

Creep of high–strength concrete and normal–strength concrete

Magazine of Concrete Research, 1991
The development and use of high–strength concrete has been evolutionary. High–strength concrete is used for tall buildings, bridges, long–span structures and offshore platforms. Very little information is available on the creep of high–strength concrete compared with that of normal concrete at room and low temperatures.
openaire   +1 more source

Pervious concrete: effects of porosity on permeability and strength

Magazine of Concrete Research, 2021
Pervious concrete needs to have many pores to achieve high water permeability, but excessive porosity may cause a serious reduction in strength.
L. Li, Jia-Jian Feng, Jiang Zhu, S. Chu, A. Kwan   +4 more
semanticscholar   +1 more source

Effect of pumice powder and nano-clay on the strength and permeability of fiber-reinforced pervious concrete incorporating recycled concrete aggregate

, 2021
Pervious concrete (PC) has been widely used to construct concrete pavements and to increase the permeable surfaces all over the world. With the boost in the use of PC, it is necessary to make it more environmental-friendly and cost efficient.
Peyman Mehrabi, M. Shariati, Kamyar Kabirifar, M. Jarrah, Haleh Rasekh, N. Trung, A. Shariati, Soheil Jahandari   +7 more
semanticscholar   +1 more source

Machine learning-based compressive strength prediction for concrete: An adaptive boosting approach

Construction and Building Materials, 2020
In this paper, an intelligent approach based on the machine learning technique is proposed for predicting the compressive strength of concrete. This approach employs the adaptive boosting algorithm to construct a strong learner by integrating several ...
D. Feng, Zhen-Tao Liu, Xiao-Dan Wang, Yin Chen, Jianbo Chang, Dongmei Wei, Zhong-Ming Jiang   +6 more
semanticscholar   +1 more source

A comparative investigation using machine learning methods for concrete compressive strength estimation

, 2021
Concrete compressive strength plays an important role in determining the mechanical properties of concrete. The determination of concrete compressive strength requires lengthy laboratory tests.
Kadir Güçlüer, Abdurrahman Özbeyaz, Samet Göymen, O. Günaydın   +3 more
semanticscholar   +1 more source