Results 11 to 20 of about 4,622 (211)
IOP Conference Series: Materials Science and Engineering, 2021 Abstract A significant number of researches pointed to the serious environmental and health effects of the Ordinary Portland Cement (OPC), including the harmful emissions and alkaline wastewaters. Therefore, the development of eco-friendly alternatives for the OPC is one of the priorities of nowadays studies.
Raad Hashim +7 more
openaire +1 more source
Ultrasonic, molecular and mechanical testing diagnostics in natural fibre reinforced, polymer-stabilised earth blocks [PDF]
, 2013 The aim of this research study was to evaluate the influence of utilising natural polymers as a form of soil stabilization, in order to assess their potential for use in building applications.
Bradley, Fiona +2 more
core +5 more sources
Frost influence on the ultrasonic pulse velocity in concrete at early phases of hydration process
Case Studies in Construction Materials, 2021 Quite often concrete strength parameters have to be determined at an early age. Due to the strong correlation existing between the mechanical and acoustic properties of concrete, ultrasonic devices can be used for this purpose.
Uldis Lencis +2 more
doaj +1 more source
Rammed Earth Construction: A Proposal for a Statistical Quality Control in the Execution Process [PDF]
, 2020 Unlike other common contemporary construction materials such as concrete, mortars, or fired clay bricks, which are widely supported by international standards and regulations, building with rammed earth is barely regulated.
Canivell, Jacinto +3 more
core +1 more source
Compressive Strength assessment of self-compacted concrete with Nano materials using ultrasonic pulse velocity method [PDF]
Journal of Structural and Construction Engineering, 2020 In this paper the compressive strength (f’c) of self-compacted concrete (SCC) containing Nanomaterials (NM) is evaluated by non-destructive ultrasonic pulse velocity method. This study involves about 13 different mixtures containing Nano oxides of Silica
Rahmat Madandoust +1 more
doaj +1 more source
Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste [PDF]
, 2008 In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously.
Chotard +19 more
core +2 more sources
Monitoring early-age acoustic emission of cement paste and fly ash paste [PDF]
, 2020 In this study, a combined approach of several monitoring techniques was applied to allow correlations between the AE activity and related processes such as shrinkage and settlement evolution, capillary pressure and temperature development in fresh ...
Aggelis, Dimitrios G. +2 more
core +1 more source
Prediction of cemented backfill strength by ultrasonic pulse velocity and BP neural network
工程科学学报, 2016 Tailing-cemented backfill is a cement-based heterogeneous composite whose uniaxial compressive strength (UCS) and ultrasonic pulse velocity (UPV) are dependent on cement dosage, solid content, sample type, etc.
XU Miao-fei +5 more
doaj +1 more source
Heliyon, 2020 This paper determines the effect of steel, glass, and nylon fibers on the compressive strength and ultrasonic pulse velocity (UPV) of fiber reinforced concrete.
Saman Hedjazi, Daniel Castillo
doaj +1 more source
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2020 Presently there is increasing attention in utilization foamcrete as a lightweight non-structural and semi-structural element in buildings to take advantage of its excellent insulation properties. Though, foamcrete has been noticed to have some disadvantages: considerable brittleness; results in low compressive and flexural strength, poor fracture ...
Mydin, Md Azree Othuman +3 more
openaire +3 more sources