Results 31 to 40 of about 102,646 (304)

Effect of steel fibers on plastic shrinkage cracking of normal and high strength concretes

open access: yesMaterials Research, 2010
Naturally concrete shrinks when it is subjected to a drying environment. If this shrinkage is restrained, tensile stresses develop and concrete may crack. Plastic shrinkage cracks are especially harmful on slabs.
Özgür Eren, Khaled Marar
doaj   +1 more source

Skin thickness of the anterior, anteromedial, and anterolateral thigh: a cadaveric study for split-skin graft donor sites [PDF]

open access: yes, 2014
Background: The depth of graft harvest and the residual dermis available for reepithelization primarily influence the healing of split-skin graft donor sites.
Chan, Jeffrey C.Y.   +4 more
core   +2 more sources

Some Geotechnical Properties of Plastic Soil Enhanced with Cement Dust

open access: yesJournal of Engineering, 2021
Plastic soil exhibits unfavorited geotechnical properties (when saturation), which causes negative defects to engineering structures. Different attempts (included various materials) were conducted to proffer solutions to such defects by experimenting in ...
Abeer F. Hussein   +2 more
doaj   +1 more source

Restrained Shrinkage of Fly Ash Based Geopolymer Concrete and Analysis of Long Term Shrinkage Prediction Models [PDF]

open access: yes, 2017
The research presented in this manuscript describes the procedure to quantify the restrained shrinkage of geopolymer concrete (GPC) using ring specimen. Massive concrete structures are susceptible to shrinkage and thermal cracking.
Ahmed, Mahbub K   +3 more
core   +3 more sources

Parameter Optimization of PET Plastic Preform Bottles in Injection Molding Process Using Grey-Based Taguchi Method

open access: yesAdvances in Materials Science and Engineering, 2022
The paper investigated the optimization design of plastic injection molding process parameters for preformed bottle production using the grey-Taguchi method to minimize shrinkage defects.
Ermias Aswossie Berihun   +1 more
doaj   +1 more source

Shrinkage Compensation Technology of Concrete Filled Steel Tubular Structure of Large Cross-Sea Bridge

open access: yesAdvances in Civil Engineering, 2023
In view of the poor accuracy and unsatisfactory effect of shrinkage compensation for concrete-filled steel tubular structures of large cross-sea bridge (CSTS-LCSB), a new shrinkage compensation technology for CSTS-LCSB is proposed.
Yi Zhao, Xiao Wu
doaj   +1 more source

Predicting the onset of rafting of c 0 precipitates by channel deformation in a Ni superalloy [PDF]

open access: yes, 2010
The growth or shrinkage, normal to 001, of the interfaces between the γ matrix and cuboidal γ' precipitates is examined for a Ni-base superalloy, by considering the force acting on the interfaces. The force is produced by the precipitate coherency misfit
Calderon, H. A.   +3 more
core   +4 more sources

Shrinkage of high performance lightweight concrete exposed to hot-dry weather conditions

open access: yesMATEC Web of Conferences, 2018
The main aim of this investigation is to study the combined effect of hot-dry weather conditions on the plastic and drying shrinkage of high performance lightweight aggregate concrete (HPLWAC) specimens, along with the other properties including ...
Ahmed Hisham   +2 more
doaj   +1 more source

Effect of 1 wt% LiF additive on the densification of nanocrystalline Y2O3 ceramics by spark plasma sintering [PDF]

open access: yes, 2011
Densification of nanocrystalline cubic yttria (nc-Y2O3) powder, with 18 nm crystal size and 1 wt% LiF as a sintering additive was investigated. Specimens were fabricated by spark plasma sintering at 100 MPa, within the temperature range of 700–1500 °C ...
Chaim, Rachman   +3 more
core   +2 more sources

The effect of fibers on the loss of water by evaporation and shrinkage of concrete

open access: yesRevista IBRACON de Estruturas e Materiais
Shrinkage is one of the least desirable attributes in concrete. Large areas of exposed concrete surfaces , such as in shotcrete tunnel linings, where it is practically impossible to make a moist cure, are highly susceptible to plastic shrinkage at early ...
N. M. P. Pillar, W. L. Repette
doaj   +1 more source

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