Results 151 to 160 of about 266,621 (357)

Cellular concrete: A viable low‐carbon alternative for developing countries in seismic regions?

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the potential of cellular concrete as an environmentally friendly alternative for shear walls based structural systems in seismic‐prone areas. The construction industry significantly contributes to global energy consumption and carbon emissions, mainly through the use of conventional materials like concrete and steel ...
Estefani Coral   +5 more
wiley   +1 more source

Influence of Brazilian fly ash fineness on the cementing efficiency factor, compressive strength and Young's modulus of concrete

open access: yesDevelopments in the Built Environment, 2023
This work investigates the cementing efficiency, determined by the k-value, of a Brazilian fly ash. The analyzed variables are the fly ash fineness and content, the water content in the mixtures and age of concrete. Further, the influence of the fineness
Margareth da Silva Magalhães   +2 more
doaj  

High-temperature stability of ambient-cured one-part alkali-activated materials incorporating graphene for thermal energy storage [PDF]

open access: yesarXiv
In this research, the ambient cured one part alkali activated material (AAM) containing graphene nanoplatelets (GNPs), fly ash, slag and silica fume has been investigated after high temperature exposure to 200 to 800oC. Their compressive strength, thermal properties, microstructure, pore structure were characterised through visual observation ...
arxiv  

The Effect of the 12-micrometer Band: Comparing GOES-11 and GOES-12 Data Using the 3-Channel Volcanic Ash Algorithm [PDF]

open access: yesarXiv, 2006
The 12-micrometer channel on GOES-11 has been replaced by the 13.3-micrometer channel on the latest geosynchronous satellite, GOES-12. There has been concern that this 13.3-micrometer channel will not be as accurate in detecting volcanic ash. Volcanic ash is highlighted using a special volcanic ash algorithm, an arithmetic combination of the brightness
arxiv  

Pemanfaatan Abu Terbang (Fly Ash) sebagai Bahan Subtitusi Semen pada Sebagian Sifat Beton Segar dan Beton Keras [PDF]

open access: yes, 2015
The research aims to obtain the characteristic of fresh and hard concrete using fly ash as substitute material on normal concrete. It is focused on analyzing the bulk density, workability, setting time, permeability and sulfate resistance. The percentage
Djauhari, Z. '. (Zulfikar)   +2 more
core  

Long‐term mechanical properties of hybrid fiber‐reinforced engineered cementitious composite

open access: yesStructural Concrete, EarlyView.
Abstract Hybrid fiber‐reinforced engineered cementitious composites (hybrid ECC) employing short straight polyethylene (PE) and steel fibers have attracted growing interest in engineering applications due to their superior strength and ductility. In most studies, the mechanical properties of hybrid ECC were determined based on samples cured for 28 days,
Shiyao Zhu, Y. X. Zhang, C. K. Lee
wiley   +1 more source

Influences of Fly Ash on Concrete Product's Properties and Environmental Impact Reduction [PDF]

open access: yesEnvironmentAsia, 2015
This research aimed to study effects of incorporating fly ash into concrete products. Scope of this study were (1) hazard identification of fly ash (2) study on standard testing of various concrete products and (3) study on environmental impact ...
Thipsuree Kornboonraksa   +1 more
doaj  

Fly ash in concrete

open access: yesCanadian Journal of Civil Engineering, 1986
Ali Akbar Ramezanianpour, V. M. Malhotra
openaire   +3 more sources

Design Of High Early Performance Concrete With The Additional Material Of Fly Ash And Silica Fume [PDF]

open access: yes, 2018
From the research, it was found that the highest strength of concrete was found in 0% fly ash replacement mixture that is 8.12 MPa at the age of 6 hours and 18.31 MPa at age of 24 hours.
, Muhammad Ujianto, S.T., M.T.   +1 more
core  

Influence of environmental conditions on the creep behavior of large‐scale concrete specimens

open access: yesStructural Concrete, EarlyView.
Abstract In this article, a testing campaign on large‐scale concrete specimens to study the influence of environmental conditions on their creep behavior for different member sizes is presented. This testing campaign is unique due to its specimen dimensions (cross‐sectional areas of up to 1 m2) and the continuous deformation measurements for over 6 ...
Wolfgang Bachofner   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy