Results 121 to 130 of about 244,804 (334)

How dense can one pack spheres of arbitrary size distribution?

, 2012
We present the first systematic algorithm to estimate the maximum packing density of spheres when the grain sizes are drawn from an arbitrary size distribution. With an Apollonian filling rule, we implement our technique for disks in 2d and spheres in 3d.
Andrade Jr., José S., Araújo, Nuno A. M., Herrmann, Hans J., Reis, Saulo D. S.   +3 more
core   +1 more source

Mechanistic Insights Into Photocatalytic Materials for Toxic Pollutants: Environmental Remediation of Personal Care Products

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Photocatalytic materials have emerged as promising solutions for environmental applications due to their ability to degrade organic pollutants under sunlight or artificial light. In this review, recent progress on the photocatalytic materials used for the degradation of pharmaceutical personal care products (PPCPs) in environmental ...
Urvashi Sen, Gunjan Chauhan, Surbhi Soni, Monika Vats, Anand Kumar, Indra Bahadur   +5 more
wiley   +1 more source

Impact of Rubber Content on Performance of Ultra-High-Performance Rubberised Concrete (UHPRuC)

International Journal of Concrete Structures and Materials
This study investigated the effect of rubber content on the mechanical characteristics of ultra-high-performance rubberised concrete (UHPRuC). The results revealed a distinctive non-linear decrease in the dry density of UHPRuC as the rubber content ...
Thong M. Pham, Josh Lee, Emad Pournasiri, Jun Li, Zhen Peng, Kaiming Bi, Tung M. Tran   +6 more
doaj   +1 more source

Investigation on mechanical properties of expansive lightweight aggregate ultra-high-performance concrete-filled steel tube short columns: Axial compression and interfacial bonding performance

Case Studies in Construction Materials
To address issues such as debonding and void formation in ultra-high-performance concrete-filled steel tubes (UHPCFST), this study developed an innovative expansive lightweight aggregate ultra-high-performance concrete-filled steel tubes (LUHPCSFT) using
Dengke Wang, Gaozhan Zhang, Hao Chen, Yuqing Hu, Dapeng Qi, Hongzhe Chen   +5 more
doaj   +1 more source

Shrinkage Mitigation and Mechanical Properties of Cement‐Based Mortar With Silane‐Functionalized Hydrogels

Journal of Applied Polymer Science, EarlyView.
Schematic depiction of silane‐functionalized hydrogels utilized in this study along with chemical structures of the primary comonents (Acrylamide, N,N'‐methylenebisacrylamide, and 3‐(trimethoxysilyl) propyl methacrylate). ABSTRACT This study investigates the applications of silane‐loaded polymer hydrogels in field‐relevant cement‐based mortar intended ...
Daniel S. Hiller, Akul N. Seshadri, Christof Schröfl, Kendra A. Erk   +3 more
wiley   +1 more source

Research on improving the durability performance of damaged concrete based on ultra high performance concrete repair

Engineering Reports
This article uses ultra‐high performance concrete (UHPC) to repair damaged concrete and analyzes the durability performance of the repaired concrete. Among them, three erosion solutions with a mass concentration of 2.8% NaCl + 0.29% Na2SO4, 5% NaCl, and ...
Shanshan Wang, Shuai Liu, Wenwu Zhang, Baolin Guo   +3 more
doaj   +1 more source

Engineering characteristics of ultra-high performance concrete containing basil plant ash

Case Studies in Construction Materials
One of the most present types of concrete in buildings is ultra-high-performance concrete. In contrast, large quantities of cement are consumed to achieve the required strength.
Abdullah M. Zeyad, Ibrahim Saad Agwa, Mahmoud H. Abd-Elrahman, Sahar A. Mostafa   +3 more
doaj   +1 more source

Consequences of an adjusted slip layer thickness for the hardened properties of UHPC [PDF]

, 2017
The pumpability of a concrete mixture cannot be described by one “single parameter”. The mixture composition, the pump equipment, the pumping pressure,… these parameters all affect the pumpability of a mixture and the ability to form a lubrication layer.
De Schutter, Geert, Lesage, Karel, Van Der Putten, Jolien   +2 more
core  

The absent presence of disability in British higher education

British Educational Research Journal, EarlyView.
Abstract Rates of disability disclosure are steadily increasing in British higher education (HE), with 18% of the student population having a known disability in 2023/24. It might be assumed that progress is being made with increased representation, rights and support for disabled students.
G. Koutsouris, L. Stentiford, E. Dimitrellou, Z. Yu, Pujaningsih, N. Azizah   +5 more
wiley   +1 more source

New development of ultra-high-performance concrete (UHPC)

Composites Part B: Engineering, 2021
Jinlin Du, Weina Meng, K. Khayat, Y. Bao, Pengwei Guo, Z. Lyu, A. Abu-obeidah, H. Nassif, Hao Wang   +8 more
semanticscholar   +1 more source