Results 111 to 120 of about 579,495 (286)

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source

Sand Fly Fever with Different Names.

Journal of arthropod-borne diseases, 2017
Sand Fly Fever with Different ...
openaire   +2 more sources

Influence of mix design method on the shear capacity of reinforced concrete beams made with high‐quality recycled coarse aggregate

Structural Concrete, EarlyView.
Abstract This study investigates the shear capacity behavior of reinforced concrete (RC) beams without stirrups incorporating recycled coarse aggregate (RCA). An extensive database comprising 269 experimental data points from 40 journal articles published between 2001 and 2025 was compiled, excluding specimens with recycled fine aggregate or fiber ...
Sungchul Yang
wiley   +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

Impact of climate and land use on the temporal variability of sand fly density in Sri Lanka: A 2-year longitudinal study.

PLoS Neglected Tropical Diseases
BackgroundLeishmaniasis has emerged as an escalating public health problem in Sri Lanka, with reported cases increasing nearly three folds over past decade, from 1,367 in 2014 to 3714 cases in 2023.
Sanath C Senanayake, Prasad Liyanage, Dulani R K Pathirage, M F Raushan Siraj, B G D Nissanka Kolitha De Silva, Nadira D Karunaweera   +5 more
doaj   +1 more source

Durability performance of a high‐performance fiber‐reinforced concrete for bridge applications

Structural Concrete, EarlyView.
Abstract This paper investigates the durability performance of a coarse‐aggregate high‐performance fiber‐reinforced concrete (HPFRC) developed as a cost‐efficient material solution for precast bridge applications. A comprehensive experimental program was conducted to assess the resistance of the material to the principal deterioration mechanisms ...
Rolando Baldiviezo, Rafael Ruiz, Borja Regúlez, Carmen Andrade, Hugo Corres, Valle Chozas‐Ligero, Leonardo Todisco   +6 more
wiley   +1 more source

Evaluation of cold joint effects on the microstructure and mechanical behavior of three‐dimensional printed concrete specimen

Structural Concrete, EarlyView.
Abstract 3D concrete printing (3DCP) is an automated construction technique that uses an extrusion process to fabricate structures efficiently. However, the layer‐by‐layer process can create interlayer weaknesses, and interruptions during printing can result in cold joints, which can negatively affect the structural behavior.
Sung‐Jo Kim, Inken Jette Rasehorn, Dietmar Stephan, Tong‐Seok Han   +3 more
wiley   +1 more source

High temperature fracture behavior and damage evolution of recycled aggregate concrete produced from metakaolin modified parent concrete

Structural Concrete, EarlyView.
Abstract The increasing use of recycled aggregate concrete (RAC) offers significant environmental benefits by reducing construction and demolition waste; however, its fracture performance and damage evolution under elevated temperatures remain insufficiently understood, particularly when recycled aggregates are derived from metakaolin modified parent ...
Zubair Yousuf, Viktor Hlavička
wiley   +1 more source

Achieving sustainable and durable concrete using high‐volume SiO2: Engineering properties, environmental and economic benefits

Structural Concrete, EarlyView.
Abstract This study explores the potential of high‐volume amorphous silica (SiO2) replacement for ordinary Portland cement (OPC) in concrete to reduce carbon emissions. Amorphous SiO2, such as silica fume (SF) and CO2 mineralization‐produced Si‐rich gel, offers superior properties to concrete but is under‐researched for its use in concrete with high ...
Xinlin Ji, Lijie Chen, R. K. L. Su
wiley   +1 more source

TYPE OF LIGHT IN SAND FLY CAPTURES (DIPTERA:PSYCHODIDAE)

Acta Biológica Colombiana, 2012
The number of cases of visceral leishmaniasis in Brazil has been gradually increasing, and one of the strategies to reduce the transmission of this disease is based on the control of the adult forms of its vectors. It is therefore of great epidemiological importance to develop more refined methods for monitoring and controlling its vectors, which are ...
Jeraldo, Verônica de Lourdes Sierpe, Casanova, Cláudio, Araújo, Edílson Divino de, Cruz, Danilo Esdras Rocha, Pinto, Mara Cristina, Melo, Claudia Moura de   +5 more
openaire   +3 more sources