Results 41 to 50 of about 1,039 (167)

ANALISIS KUAT TEKAN DAN ULTRASONIC PULSE VELOCITY (UPV TEST) PADA MUTU BETON K 350 MENGGUNAKAN BETON SISA PENGUJIAN SEBAGAI SUBSTITUSI AGREGAT KASAR

PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa, 2023
Salah satu upaya untuk mengurangi eksploitasi batuan alam sebagai bahan penyusun beton adalah memanfaatkan beton sisa pengujian. Beton sisa pengujian yang digunakan adalah beton sisa atau limbah dari hasil pengujian laboratorium sebagai pengganti agregat kasar dalam pembuatan beton baru.
null Azhar Darujati, null Sartika Nisumanti, null Ghina Amalia   +2 more
openaire   +1 more source

The study of ultrasonic pulse velocity on plain and reinforced damaged concrete

MATEC Web of Conferences, 2018
An ultrasonic pulse velocity (UPV) test is often applied to determine the quality of concrete structures. It is well known that there are several factors which can influence the reading of ultrasonic velocity in concrete.
Kencanawati Ni Nyoman, Akmaluddin, Anshari Buan, Gazi Paedullah Ahmad, Shigeishi Mitsuhiro   +4 more
doaj   +1 more source

Utilizing Polypropylene Fiber in Sustainable Structural Concrete Mixtures

CivilEng, 2022
Polypropylene fiber reinforced concrete (PFRC) is becoming more popular for structural purposes due to its durability, electrical resistivity, and mechanical properties. In this study, the influence of polypropylene fiber on the mechanical properties and
Saman Hedjazi, Daniel Castillo
doaj   +1 more source

A Comparative Study between the Effect of Steel Fiber on Ultrasonic Pulse Velocity (UPV) in Light and Normal Weight Self-Compacting Concretes

IOP Conference Series: Materials Science and Engineering, 2020
Abstract This research presents a comparative study to highlight the differences between the effect of using various contents of steel fibers on the ultrasonic pulse velocity (UPV) in two types of self-compacting concretes (SCC) which are identical in their constituent materials, the only difference between them is the coarse aggregate ...
Ahmed S. D. AL-Ridha, Ali A. Abbood, Saeb F. Al-Chalabi, Abaa M. Aziz, Layth Sahib Dheyab   +4 more
openaire   +1 more source

Improving the mechanical characteristics of environmentally friendly concrete using fly ash and brick powder as partial sand replacements [PDF]

Građevinski Materijali i Konstrukcije
Infrastructure and urbanization drive the demand for concrete, which puts pressure on natural resources and jeopardizes the ecosystem. Incorporating recycled materials into concrete can fulfill this demand without sacrificing quality. This study examines
Filali Saloua, Nasser Abdelkader, Azougay Abdellah   +2 more
doaj   +1 more source

Assessment of a Non-Destructive Testing Method Using Ultrasonic Pulse Velocity to Determine the Compressive Strength of Rubberized Bricks Produced with Lime Kiln Dust Waste

Geotechnics, 2023
This paper presents a comprehensive study in which non-destructive testing utilizing ultrasonic pulse velocity (UPV), considering both pressure (P) waves and shear (S) waves, was used to assess the compressive strength (CS) of rubberized bricks.
Joy Ayankop Oke, Hossam Abuel-Naga
doaj   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Bacterial healing of cracks in metakaolin‐based geopolymer concrete exposed to high temperatures

Structural Concrete, EarlyView.
Abstract This study examined the bacterial healing of metakaolin‐based geopolymer concrete modified with colemanite (K) and red mud (RM) exposed to high temperatures. The metakaolin‐based geopolymer concrete samples modified with 4% K and 6% RM were prepared.
Harun Tanyildizi, Mahmoud Ziada, Mucteba Uysal, Savaş Erdem   +3 more
wiley   +1 more source

From Green Extraction to Gut Bioaccessibility: Synergistic Potential of Ginkgo biloba, Astragalus membranaceus, and Salvia miltiorrhiza Phytochemicals for Functional Food Applications

Food Science &Nutrition, Volume 14, Issue 7, July 2026.
This study optimized green extraction of a synergistic tri‐herbal blend of Ginkgo biloba, Astragalus membranaceus, and Salvia miltiorrhiza. The 1:1:2 blend showed the highest TPC synergy, with probe ultrasound giving maximal phenolic recovery. The extract, rich in rosmarinic acid, chlorogenic acid, and catechin, exhibited antioxidant, antimicrobial ...
Mohamed Ibrahim Younis, Yahia Ibrahim Sallam, Khaled Fahmy Mahmoud, Rawaa H. Tlay, M. Ali Aboudzadeh, Tarek Gamal Abedelmaksoud   +5 more
wiley   +1 more source

Characterization of pervious concrete focusing on non-destructive testing

Revista IBRACON de Estruturas e Materiais, 2020
This study aims to investigate the properties of pervious concrete focusing on characterization tests by the Ultrasound Method. For this, three mixtures were produced with the paste/aggregate (P/Ag) ratio ranging from 0.45 to 0.65, water to cement ratio (
S. T. MARTINS FILHO, E. M. BOSQUESI, J. R. FABRO, R. PIERALISI   +3 more
doaj   +2 more sources