Results 121 to 130 of about 154,207 (310)

Comparative Study of the Mechanical Behavior of Self Compacting and Conventional Concreteswith Strength of 20-80 MPa

Journal of Engineering and Sustainable Development, 2008
The aim of this study is to find a correlation between strength of different concrete specimen shapes and sizes of self-compacting concrete, to evaluate the mechanical properties (compressive strength, splitting tensile strength and modulus of ...
Ghazi F. Kheder, Mohammed M. Rasheed, Asma’ Mehdi Ali   +2 more
doaj  

Prediction of Concrete Compressive Strength in Saline Soil Environments. [PDF]

Materials (Basel), 2022
Yang D, Yan C, Liu S, Jia Z, Wang C.
europepmc   +1 more source

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

Deep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan, Haijiang Li, Hongqiang Xie, Mingli Xiao, Jianliang Pei, Huaizhong Liu, Jiangda He   +6 more
wiley   +1 more source

Analisis Perilaku Kekuatan Kolom Semi Pracetak Akibat Beban Aksial dan Beban Lateral [PDF]

, 2016
Semi-precast column uses the combination of cast-in-place concrete and precast concrete. In semi-precast concrete column, difference in compressive strength exists between the cast-in-place and precast concrete.
', I. (Ismeddiyanto), Amri, F. '. (Fahmi), Kurniawandy, A. '. (Alex)   +2 more
core  

Concrete Compressive Strength by Means of Ultrasonic Pulse Velocity and Moduli of Elasticity. [PDF]

Materials (Basel), 2021
Bolborea B, Baera C, Dan S, Gruin A, Burduhos-Nergis DD, Vasile V.   +5 more
europepmc   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

Deep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang, Yonghua Ye, Jianping Zuo, Baojiang Han, Weigang Jiao   +4 more
wiley   +1 more source

Pengaruh Penambahan Serat Polypropylene terhadap Sifat Mekanis Beton Normal [PDF]

, 2015
This research studies the mechanical properties of polypropylene concrete consist of compressive strength, modulus of elasticity, splitting tensile strength, flexural strength and deflection.
Kamaldi, A. '. (Alfian), Khairizal, Y. '. (Yuri), Kurniawandy, A. '. (Alex)   +2 more
core  

Mechanical Properties of Geopolymer Concrete Exposed to Combustion

MATEC Web of Conferences, 2017
This paper presents the change of material properties, such as decreasing of the compressive strength, splitting tensile strength, and porosity. The main objective of this paper is to analyze the mechanical properties of fly ash-based geopolymer concrete
Rahmadina Annisa, Ekaputri Januarti Jaya
doaj   +1 more source

Prediction of Ecofriendly Concrete Compressive Strength Using Gradient Boosting Regression Tree Combined with GridSearchCV Hyperparameter-Optimization Techniques. [PDF]

Materials (Basel), 2022
Alhakeem ZM, Jebur YM, Henedy SN, Imran H, Bernardo LFA, Hussein HM.   +5 more
europepmc   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source