Results 11 to 20 of about 303,699 (311)

Effects of Fly Ash Dosage on Shrinkage, Crack Resistance and Fractal Characteristics of Face Slab Concrete

open access: yesFractal and Fractional, 2022
The crack resistance of face slab concretes to various shrinkages is crucial for the structural integrity and the normal operation of concrete-faced rockfill dams (CFRDs). In this work, the effects of fly ash with four dosages (i.e., 10%, 20%, 30% and 40%
Lei Wang   +5 more
doaj   +1 more source

On Reverse Shrinkage Effects and Shrinkage Overshoot

open access: yesPsychometrika, 2023
Given a squared Euclidean norm penalty, we examine some less well-known properties of shrinkage estimates. In particular, we highlight that it is possible for some components of the shrinkage estimator to be placed further away from the prior mean than the original estimate.
openaire   +2 more sources

"Relationship between microstructure and properties of chlorinated butyl rubber"

open access: yesHecheng xiangjiao gongye, 2023
Several chlorinated butyl rubbers (CIIR) with different microstructures were selected to study the effects of microstructure and calcium stearate content on their vulcanization characteristics, physical and mechanical properties and heat aging resistance.
GAO Song1,2, HAO Fu-lan1,2, MOU Xiao-juan1,2, FAN Guang-kun1,2, ZHENG Hong-bing1,2
doaj   +1 more source

Comparison of specific energy and efficiency of solar dryer under the influence of collector type and investigation of some characteristics of dried tomatoes [PDF]

open access: yesمجله پژوهش‌های علوم و صنایع غذایی ایران, 2021
Introduction: Drying of agricultural products is one of the main ways to prevent product spoilage. There are several methods to dry agricultural products, including direct sunlight, hot, sunny weather, microwave, vacuum, and freezer which use different ...
Hadi Samimi Akhijahani
doaj   +1 more source

A methodology for shrinkage measurement in micro-injection moulding [PDF]

open access: yes, 2013
The aim of this paper is to provide a method for measuring shrinkage in micro injection moulded (μ-IM) parts - no standardised approach being reported as yet in the literature.
Alcock, Jeffrey R.   +2 more
core   +1 more source

Scoping the contextual issues that influence shrinkage measurement. [PDF]

open access: yes, 2006
Measures and measurement systems must reflect the context to which they are applied (Neely, 1999), requiring that the contextual issues relating to retail shrinkage must be identified as a necessary precursor when measuring shrinkage. Without considering
Templar, Simon, Chapman, Paul
core   +1 more source

A Low-Autogenous-Shrinkage Alkali-Activated Slag and Fly Ash Concrete

open access: yesApplied Sciences, 2020
Alkali-activated slag and fly ash (AASF) materials are emerging as promising alternatives to conventional Portland cement. Despite the superior mechanical properties of AASF materials, they are known to show large autogenous shrinkage, which hinders the ...
Zhenming Li   +4 more
doaj   +1 more source

Prediction of the sintering shrinkage of glass-alumina functionally graded materials by a BP artificial neural network [PDF]

open access: yesScience of Sintering, 2009
The shrinkage of the glass-alumina functionally graded materials (G-A FGMs) as a function of sintering temperature, layers, and the alumina content was predicted by a back propagation artificial neural network (BP-ANN).
Yu C.L.   +5 more
doaj   +1 more source

Experimental Research on Compressive and Shrinkage Properties of ECC Containing Ceramic Wastes Under Different Curing Conditions

open access: yesFrontiers in Materials, 2021
Engineered cementitious composites (ECCs) suffer from high shrinkage and low early strength due to large dosage of cementitious materials and slow hydration of fly ash.
Yan Xiong   +5 more
doaj   +1 more source

Shrinkage behavior enhancement of infra-lightweight concrete through FRP grid reinforcement and development of their shrinkage prediction models [PDF]

open access: yes, 2020
Infra-lightweight concrete (ILC) is an efficient alternative of normal concrete (NC) for structural applications with low strength but high thermal performance requirements.
Tafsirojjaman, T.   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy