Results 51 to 60 of about 3,765 (253)

Heat treatment of processing sludge of ornamental rocks: application as pozzolan in cement matrices

Revista IBRACON de Estruturas e Materiais
The sector of ornamental rocks produces significant volume of waste during the sawing of the blocks and demand to find ways to recycle, given its environmental impact.
J.G. Uliana, J. L. Calmon, G. L. Vieira, J. E. S. L. Teixeira, E. Nunes   +4 more
doaj   +1 more source

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

Journal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
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

TEM and SAED Characterization of Metakaolin. Pozzolanic Activity [PDF]

, 2012
The present study deals with a characterization of metakaolin pozzolanic activity and its chemical character exhibited in the Ordinary Portland Cement (OPC) blends by means of Transmission Electron Microscopy (TEM) and Selected-Area Electron Diffraction (
Fernandez Martinez, F., Rahhal, V., Talero Morales, Rafael, Trusilewicz, Lidia Natalia   +3 more
core   +2 more sources

Sustainable High‐Performance Green Concrete Utilizing Untreated Spent Foundry Sand: Microstructural Analysis, Mechanical Properties, and Durability

Engineering Reports, Volume 8, Issue 4, April 2026.
This study demonstrates the successful incorporation of Spent Foundry Sand (SFS) as a sustainable alternative to natural sand in concrete, enhancing compressive and tensile strengths by up to 26% and 12.87%, respectively, while reducing chloride permeability.
Yiren Wang, Lian Ju, Yibo Wang, Wei Liu
wiley   +1 more source

Iraqi bentonite as natural pozzolan

Magazine of Civil Engineering, 2022
In this study, Iraqi high-calcium bentonite was used for the first time to prepare natural pozzolan for concrete by the thermal activation method (calcination). Raw bentonite was calcined at 700, 750, 800, 850, 900, and 950°C for 30, 60, 90, and 120 minutes at each temperature.
Al-Hammood, Amer, Frayyeh, Qais, Abbas, Waleed   +2 more
openaire   +2 more sources

Assessment of the pozzolanic activity of ornamental stone waste after heat treatment and its effect on the mechanical properties of concretes

Revista IBRACON de Estruturas e Materiais, 2018
This paper aims at evaluating the pozzolanic properties of ornamental stone processing waste after heat treatment at 1200 °C (HTOSPW) and analyzing the influence on the mechanical strength of concrete produced with HTOSPW addition at the contents of 5 ...
S. H. M. MITTRI, M. K. DEGEN, G. L. VIEIRA, J. S. VAZZOLER, L. H. C. H. RODRIGUES   +4 more
doaj   +2 more sources

Evaluation of corn straw ash as supplementary cementitious material: Effect of acid leaching on its pozzolanic activity

Cement, 2021
The use of biomass ash is an environmentally friendly practice in the search for sustainable construction materials. This study aimed to produce pozzolanic ash from corn straw with a high amorphous silica content, low carbon content, and high specific ...
Charles Prado Ferreira de Lima, Guilherme Chagas Cordeiro   +1 more
doaj   +1 more source

Electrospun Nanofibres for Load‐Bearing Composite Materials—A Review of Techniques, Mechanical Properties and Durability

Polymer Composites, Volume 47, Issue 5, Page 3917-3945, 10 March 2026.
Electrospun nanofibre for load‐bearing composite materials. ABSTRACT Electrospun nanofibres are emerging nanomaterials prized for their scalability, high surface area to volume ratio and yield. Their effectiveness in improving the mechanical properties of fiber reinforced composites is widely reported. Nanofibres could activate multiscale toughness and
Usaid Ahmed Shakil, Petr Hájek
wiley   +1 more source

Strengthening of three-leaf stone masonry walls: an experimental research [PDF]

, 2012
The paper summarizes the results of an experimental research carried out on three-leaf masonry walls of typical granite stone constructions from the North of Portugal. The research aimed at studying the behaviour under compression of this wall typology,
Daniel V. Oliveira, DV Oliveira, E Vintzileou, E Vintzileou, Enrico Garbin, G Baronio, G Vasconcelos, J Ding, JL Pina-Henriques, L Binda, L Binda, MM Reda Taha, MR Valluzzi, MR Valluzzi, MR Valluzzi, Paulo B. Lourenço, PB Lourenço, Rui A. Silva   +17 more
core   +1 more source

Incorporation of Coconut Fibers Into Clay‐Based Mortars: A Study on Mechanical and Microscopic Behavior

International Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
Clay‐based mortar reinforced with coconut fibers showed improved flexural strength and promising mechanical performance, despite shrinkage‐induced cracks. The study highlights the potential of using waste and natural fibers in eco‐efficient mortars, emphasizing the importance of curing and moisture control.
Gabriela Machado Guimarães Ferreira, Sebastião Ribeiro   +1 more
wiley   +1 more source