Results 251 to 260 of about 353,809 (295)

Effects of triethanolamine on autogenous shrinkage and drying shrinkage of cement mortar

Construction and Building Materials, 2021
Abstract Impacts of triethanolamine (TEA) on autogenous shrinkage, drying shrinkage and strength development of cement mortars were investigated. Hydration kinetics, pore structure and microstructure of hardened cement pastes (hcps) incorporated with TEA were systematically analyzed to reveal the working mechanism of TEA.
Hui Liu, Hui Lin, Xiaoyong Liu, Jian Wang, Xiaofan Pang, Xiangming Kong   +5 more
openaire   +1 more source

Drying shrinkage of expansive cements

Journal of Materials Science, 1988
Drying shrinkage behaviour of expansive cement pastes were studied and compared with those of portland cements. Results indicate that the shrinkage behaviour of these two cements is significantly different from each other. Generally, expansive cements shrink more than portland cements, and especially more so if they have not been adequately cured, i.e.
Menashi D. Cohen, Barzin Mobasher
openaire   +1 more source

ON THE DRYING MECHANISM OF SHRINKAGE MATERIALS

Drying Technology, 1992
ABSTRACT Effects of moisture content on Liquid transport properties (Permeability and suction pressure) and mechanical properties (Young's modulus, yield stress and tensile strength) of drying shrinkage materials (Kibnshi, IIaido and mixed clay) were measured and a strong dependence was found.
Ikuro Shishido, Mutsumi Suzuki, Shigemori Ohtani   +2 more
openaire   +1 more source

Analysis of Shrinkage Reducing Admixtures on Drying Shrinkage of Concrete

"SP-209: ACI Fifth Int Conf Innovations in Design with Emphasis on Seismic, Wind and Environmental Loading, Quality Con", 2002
This work aimed to verify the feasibility of reducing the drying shrinkage of concrete made with portland pozzolan cement. Major variables included slump, shrinkage-reducing admixture (SRA) brand and dosages, and specimen dimensions. Tests were conducted on 132 prism specimens and shrinkage strains were measured up to 360 days of drying.
openaire   +1 more source

Apple shrinkage upon drying

Journal of Food Engineering, 1995
Abstract In this paper results from a study of the shrinkage of Mutsu apple slices during drying in a connective oven are presented. The results are expressed as relationships between volume and thickness reduction as well as between volume reduction and water content. No differences were observed with respect to slice size.
I. Sjöholm, V. Gekas
openaire   +1 more source

Analytical and numerical study of drying of tomato in non-shrinkage and shrinkage model

Mathematics and Computers in Simulation, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ebrahim Azhdari, Aram Emami
openaire   +2 more sources

Shrinkage during drying of foodstuffs

Journal of Food Engineering, 1994
Abstract Experimental shrinkage data as a function of water content for particles of potatoes, apples and carrots of different geometry and under various drying conditions are presented. Volumetric shrinkage of individual particles is affected mainly by air velocity; other drying variables have negligible effect.
openaire   +1 more source

The Behavior at the Shrinkage Limit of Clay Undergoing Drying

Geotechnical Testing Journal, 1992
Abstract In this paper, possible links between the shrinkage limit and distinct changes in other properties of a clay soil undergoing drying are discussed. These properties include the volumetric air content of the soil, the heat of wetting, the tensile strength, the total suction, and the thermal resistivity of the soil.
Williams, David J., Sibley, J. W.
openaire   +3 more sources

Potato Shrinkage During Hot Air Drying

Food Science and Technology International, 2010
Shrinkage is one of the most important physical changes that occur during the dehydration of foods. In this work, the effect of the temperature (35, 40, 50, 60 and 70 °C) and air velocity (7, 8, 9 and 10 m/s) on bulk volumetric shrinkage was investigated. Volume changes were evaluated by image analysis.
A, Frías, G, Clemente, A, Mulet
openaire   +2 more sources

Freeze‐drying shrinkage of glutaraldehyde fixed liver

Journal of Microscopy, 1981
SUMMARYDimensional changes were recorded during the freeze drying (FD) of 1 mm cubes of glutaraldehyde (GA) fixed adult mouse liver. The areas of the front faces of these blocks was measured using a Quantimet 720 image analysing computer system. Interpolating the first straight line portion of the graphs of size versus time backwards to the origin ...
A, Boyde, F, Franc
openaire   +2 more sources