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Sifat Fisik dan Mekanis Beton Sekat Kanal High Volume Fly Ash (HVFA) di Lingkungan Gambut
JURNAL TEKNIK; Vol. 16 No. 1 (2022): Edisi April 2022; 23-31
Lingkungan gambut dengan tingkat keasaman tinggi dapat mempengaruhi dan merusak ketahanan beton. Penelitian ini bertujuan untuk mengetahui bagaimana sifat fisik dan mekanis beton sekat kanal (Canal Blocking) dilingkungan gambut. Variasi beton dalam p...
PubMed
Effects of Fly Ash Particle Size and Chemical Activators on the Hydration of High-Volume Fly Ash Mortars
Materials (Basel)
This study investigated the effects of the fly ash (FA) particle size and chemical activators on the hydration reactions of high-volume fly ash (HVFA) cement pastes and the mechanical properties of HVFA mortars, with five types of FA with varying pro...
PubMed
Effects of Incorporating High-Volume Fly Ash into Tricalcium Silicate on the Degree of Silicate Polymerization and Aluminum Substitution for Silicon in Calcium Silicate Hydrate
Materials (Basel)
This study assesses the quantitative effects of incorporating high-volume fly ash (HVFA) into tricalcium silicate (C(3)S) paste on the hydration, degree of silicate polymerization, and Al substitution for Si in calcium silicate hydrate (C–S–H). T...
PubMed
Utilization of Crumb Rubber and High-Volume Fly Ash in Concrete for Environmental Sustainability: RSM-Based Modeling and Optimization
Materials (Basel)
Waste tire and fly ash (FA) are two waste materials whose disposal and rapid rate of accumulation are among the pressing sources of concern and threat to the environment. Although much research exists on the use of these materials in cementitious com...
PubMed
Prospective Comparison of VisuALL Virtual Reality Perimetry and Humphrey Automated Perimetry in Glaucoma
J Curr Glaucoma Pract
AIM AND BACKGROUND: Automated perimetry plays an important role in the diagnosis and monitoring of glaucoma patients. The purpose of this study is to prospectively determine parity between Humphrey visual field analyzer (HVFA) perimetry (the current ...
PubMed
Hydration and Mechanical Properties of High-Volume Fly Ash Cement under Different Curing Temperatures
Materials (Basel)
This study aimed to investigate the effects of different curing temperatures on the hydration and mechanical properties of high-volume fly ash (HVFA) concrete. The key variables were curing temperature (13 °C, 23 °C, 43 °C) and fly ash (FA) conten...
PubMed
The Relationship of Compressive Strength and Chemically Bound Water Content of High-Volume Fly Ash-Cement Mortar
Materials (Basel)
Fly ash (FA) has been widely used in cement-based materials, but limited work has been conducted to establish the relationship between the compressive strength and hydration process of high-volume FA (HVFA)-cement-based material. In this study, the c...
PubMed
Strength Development and Thermogravimetric Investigation of High-Volume Fly Ash Binders
Materials (Basel)
To address sustainability issues by facilitating the use of high-volume fly ash (HVFA) concrete in industry, this paper investigates the early age hydration properties of HVFA binders in concrete and the correlation between hydration properties and c...
PubMed
Validating tablet perimetry against standard Humphrey Visual Field Analyzer for glaucoma screening in Indian population
Indian J Ophthalmol
PURPOSE: The aim of this study was to determine the correlation between the perimetric outcomes using a free application program of the iPad, 'Visual Fields Easy' (VFE), and Humphrey Visual Field Analyzer (HVFA), in normal as well as eyes w...
PubMed
Virtual Reality Hemifield Measurements for Corrective Surgery Eligibility in Ptosis Patients: A Pilot Clinical Trial
Transl Vis Sci Technol
PURPOSE: We developed an accelerated virtual reality (VR) suprathreshold hemifield perimetry algorithm, the median cut hemifield test (MCHT). This study examines the ability of the MCHT to determine ptosis severity and its reversibility with an artif...
PubMed
Effects of aircraft operating fluids and environmental thermal fatigue on fly ash and steel slag based cementitious composites
Sci Rep
This paper investigates the performance of concrete incorporating high-volume fly ash (HVFA) and steel slag aggregates against the detrimental effects of combined cycles of environmental thermal fatigue and exposure to leaked aircraft fluids. A total...
PubMed
Mechanical Properties of High-Volume Fly Ash Strain Hardening Cementitious Composite (HVFA-SHCC) for Structural Application
Materials (Basel)
Strain-hardening cementitious composite (SHCC) is a kind of construction material that exhibits multiple cracking and strain-hardening behaviors. The partial replacement of cement with fly ash is beneficial to the formation of the tensile strain-hard...
PubMed
Association of Diopsys® Short-duration Transient Visual Evoked Potential Latency with Visual Field Progression in Chronic Glaucoma
J Curr Glaucoma Pract
AIM: To determine the association of Diopsys® NOVA-LX amplitude and latency abnormality scores with perimetric staging of chronic glaucoma, and to explore potential single-visit short-duration transient visual evoked potential (SD-tVEP) trend detect...
PubMed
Evaluation of Sudden Visual Loss and Central 10-Degree Visual Field Change Following Glaucoma Surgery in Severe and End-Stage Eyes
Beyoglu Eye J
OBJECTIVES: The purpose of the study was to evaluate the sudden visual loss and central 10-degree visual field (VF) change following glaucoma surgery in eyes with severe and end-stage glaucoma. METHODS: This was a single-center retrospective study. T...
PubMed
Accelerated and natural carbonation of concrete with high volumes of fly ash: chemical, mineralogical and microstructural effects
R Soc Open Sci
Today, a rather poor carbonation resistance is being reported for high-volume fly ash (HVFA) binder systems. This conclusion is usually drawn from accelerated carbonation experiments conducted at CO(2) levels that highly exceed the natural atmospheri...
PubMed
Relationship between Scanning Laser Polarimetry with Enhanced Corneal Compensation and with Variable Corneal Compensation
Korean J Ophthalmol
PURPOSE: To evaluate the structure-function relationships between retinal sensitivity measured by Humphrey visual field analyzer (HVFA) and the retinal nerve fiber layer (RNFL) thickness measured by scanning laser polarimetry (SLP) with variable corn...
PubMed
Synergistic effects of hybrid fibres and natural rubber latex on the thermal stability and mechanical properties of high-volume fly ash concrete
Sci Rep
Structures exposed to high temperatures must have enhanced thermal stability and mechanical properties. It is essential to utilise sustainable materials in the endeavour to achieve this objective. This study investigates the combined effects of natur...
PubMed
Tailoring Confining Jacket for Concrete Column Using Ultra High Performance-Fiber Reinforced Cementitious Composites (UHP-FRCC) with High Volume Fly Ash (HVFA)
Materials (Basel)
Ultra-High Performance Fibre-Reinforced Cementitious Composites (UHP-FRCC) show excellent mechanical performances in terms of strength, ductility, and durability. Therefore, these cementitious materials have been successfully used for repairing, stre...
PubMed
Influences of Sodium Lignosulfonate and High-Volume Fly Ash on Setting Time and Hardened State Properties of Engineered Cementitious Composites
Materials (Basel)
Engineered Cementitious Composites (ECC) exhibit high ductility accompanied by multiple narrow cracking behavior under uniaxial tension. The study experimentally investigated the influence of sodium lignosulfonate and high volumes of fly ash (HVFA) o...
PubMed
Predicting compressive and splitting tensile strength of high volume fly ash roller compacted concrete using ANN and ANN-biogeography based optimization models
Sci Rep
Roller compacted concrete (RCC) has gained prominence in the construction industry due to its durability, cost-effectiveness, and environmental benefits, particularly with the incorporation of high-volume fly ash (HVFA). However, traditional experime...