Results 11 to 20 of about 30,223 (236)

Study on strength and ultrasonic pulse velocity of cemented aeolian sand backfill under multiple factors using response surface method [PDF]

Scientific Reports
Aeolian sand (AS) has been increasingly used to prepare cemented AS backfill (CASB) for coal mining. Although strength is an important determinant of the CASB performance, existing research on the CASB has not addressed the effects of multi-factor ...
Yingxi Li, Shushuai Wang, Gang Li, Qinghe Yang   +3 more
doaj   +2 more sources

A new approach to estimate compressive strength of concrete by the UPV method

Revista IBRACON de Estruturas e Materiais, 2016
Although the ultrasonic pulse velocity (UPV) method has been extensively used to estimate concrete compressive strength, the relationship between UPV and concrete strength is mixture dependent.
M. A. P. Irrigaray, R. C. de A. Pinto, I. J. Padaratz   +2 more
doaj   +2 more sources

Mathematical model for predicting the ultrasonic pulse velocity of concrete

Cogent Engineering, 2023
This paper proposes a mathematical model approach to predict the Ultrasonic Pulse Velocity (UPV) of concrete. This paper presents the formulation, calibration, evaluation, and validation of the proposed UPV model. An experimental program was developed to
Fayez Moutassem, Issam Miqdadi
doaj   +1 more source

Dataset on the environmental and social footprint of the University of the Basque Country UPV/EHU

Data in Brief, 2022
The organisational life cycle assessment (O-LCA) and the social organisational life cycle assessment (SO-LCA) of the University of the Basque Country UPV/EHU were conducted.
Gorka Bueno, Maite de Blas, E. Perez-Iribarren, I. Zuazo, Eduardo Torre-Pascual, A. Erauskin, I. Etxano, U. Tamayo, María García, Ortzi Akizu-Gardoki, Iñigo León, C. Marieta, E. Sáez de Cámara, G. Zulueta, Isaac Barrio   +14 more
semanticscholar   +1 more source

Impact of waste materials (glass powder and silica fume) on features of high-strength concrete

Open Engineering, 2023
Pozzolanic materials, glass powder, and silica fume (SF) have all been used in concrete recently as a partial cement substitution to increase the strength of the concrete.
Saify Samir, Radhi Mohammed Sattar, Al-Mashhadi Samer A., Mareai Basim, Jabr Sarah Fadel, Mohammed Zainab Adel, Al-Khafaji Zainab, Al-Husseinawi Fatimah   +7 more
doaj   +1 more source

EVALUATION OF ULTRASONIC PULSE VELOCITY (UPV) FOR REINFORCED CONCRETE CORROSION

Journal of Applied Engineering Science, 2022
This study was undertaken to evaluate the efficiency of the ultrasonic test for detecting reinforcement corrosion levels under varying conditions and to form a correlation between the ultrasonic pulse velocity (UPV) values and the flexural capacity of ...
Yousef Almashakbeh, E. Saleh
semanticscholar   +1 more source

Concrete Structures Evaluation and Analysis of the Kalikuto Bridge on the Batang Semarang Toll Road Segment

Media Komunikasi Teknik Sipil, 2023
The structural strength of a bridge is critical for the safety and security of road users, particularly on toll roads. The existing concrete structure must be evaluated on a regular basis as part of the bridge's health inspection.
Bobby Rio Indriyantho, Aries Susanty, Sumardi Sumardi, Nuroji Nuroji   +3 more
doaj   +1 more source

Physical and mechanical characterization of sand replaced stone dust concrete

Materials Research Express, 2021
In this research work, physical, chemical, morphological, and mechanical behavior as partial replacement of fine aggregate in concrete. Stone dust was acquired from three different sources i.e.
Muhammad Humayun, Muhammad Zeeshan Ahad, Ubaid ur Rehman Ghori, Amir Naveed, Fawad Ahmad, Muhammad Arif, Shaista Afridi, Muhammad Sadiq, Saeed Ullah Jan, Muhammad Asif   +9 more
doaj   +1 more source

Social organisational LCA for the academic activity of the University of the Basque Country UPV/EHU

The International Journal of Life Cycle Assessment, 2021
This article aims to estimate the social footprint of a higher education institution (HEI) and its potential contribution to Sustainable Development Goals (SDGs) under life cycle assessment (LCA) perspective.
Artitzar Erauskin‐Tolosa, Gorka Bueno, I. Etxano, U. Tamayo, María García, Maite de Blas, E. Pérez-Iribarren, I. Zuazo, Eduardo Torre-Pascual, Ortzi Akizu-Gardoki   +9 more
semanticscholar   +1 more source

Evolution of Mechanical Properties with Time of Fly-Ash-Based Geopolymer Mortars under the Effect of Granulated Ground Blast Furnace Slag Addition

Energies, 2020
Geopolymers are considered to alternatives to Portland cement, providing an opportunity to exploit aluminosilicate wastes or co-products with promising performances in the construction sector.
Mateusz Sitarz, Izabela Hager, Marta Choińska   +2 more
doaj   +1 more source