Results 21 to 30 of about 266,621 (357)

Influence of Particle Size Distribution of High Calcium Fly Ash on HVFA Mortar Properties

open access: yesCivil Engineering Dimension, 2018
This study evaluates the effect of particle size distribution (PSD) of high calcium fly ash on high volume fly ash (HVFA) mortar characteristics. Four PSD variations of high calcium fly ash used were: unclassified fly ash and fly ash passing sieve No ...
Antoni .   +2 more
doaj   +3 more sources

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð   +3 more
wiley   +1 more source

Influence of Fly Ash Addition on Behavior of Soft Clayey Soil [PDF]

open access: yesEngineering and Technology Journal, 2020
This paper investigates the impact of the fly Ash addition on the Geotechnical properties of soft soil as well as chooses the optimum percentage added of fly ash.
Hussein Karim   +2 more
doaj   +1 more source

Influence of Different Addition Ratios of Fly Ash on Mechanical Properties of ADC10 Aluminum Matrix Composites

open access: yesMetals, 2022
Aluminum-fly ash composites are formed by the chemical reaction between fly ash and the high-temperature aluminum-based alloy, which melts to form aluminum oxide as a reinforcing phase, which belongs to a composite of in situ synthetic reinforcing phases.
Shueiwan Henry Juang, Ching-Feng Li
doaj   +1 more source

NPK 15-10-12 dengan Pengisi Abu Terbang: Pengembangan Pupuk dan Pengujian pada Tomat

open access: yesJurnal Ilmu Pertanian Indonesia, 2022
PT Pupuk Sriwidjaja Palembang (PSP) produces 1,222 tons fly ash per month from the operation of a coal boiler with a capacity of 1x23 MW. Fly ash has potential physical properties and mineral content.
Pebrianto Harnawan   +2 more
doaj   +1 more source

Research progress on fly ash foundation technology to prevent and control spontaneous combustion of coal in mines

open access: yesMeitan kexue jishu, 2023
Coal is the main energy source in China, which is also an important guarantee for the safety and stability of the national power supply as well as economic development. However, the coal combustion process for power generation will produce a large amount
QIN Botao   +4 more
doaj   +1 more source

Machine Learning-based Prediction of Porosity for Concrete Containing Supplementary Cementitious Materials [PDF]

open access: yes, 2021
Porosity has been identified as the key indicator of the durability properties of concrete exposed to aggressive environments. This paper applies ensemble learning to predict porosity of high-performance concrete containing supplementary cementitious materials.
arxiv   +1 more source

Analisis Daur Hidup Produksi Beton Fly Ash sebagai Upaya Mengurangi Dampak Emisi CO2

open access: yesJurnal Ilmu Lingkungan, 2023
Penggunaan batubara untuk produksi energi listrik menimbulkan berbagai dampak lingkungan seperti deforestasi hutan untuk pembukaan lahan tambang batubara dan pencemaran udara dari limbah fly ash. Jumlah timbulan limbah fly ash harus dikendalikan.
Ahzab Muttaqien   +2 more
doaj   +1 more source

Experimental Study on Preparation and Performance of Concrete With Large Content of Fly Ash

open access: yesFrontiers in Materials, 2022
Producing concrete with large content of fly ash attracts increasing attention in low carbon building materials. In this paper, the fly-ash concrete (FAC) with a content of fly ash no less than 50% total weight of binders was developed.
Changyong Li   +8 more
doaj   +1 more source

The rheological properties of cement pastes containing fly ash with different particle size distribution

open access: yesCommunications, 2000
The paper presents the analysis of fly ash influence on rheological properties of cement pastes with content different type of fly ash concerning particle size distribution.
Stefania Greszczyk, Grzegorz Lipowski
doaj   +1 more source

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