Results 261 to 270 of about 9,441 (308)

Creep of lightweight concrete

Magazine of Concrete Research, 1959
Summary Creep data covering periods of up to 18 months for concretes made with expanded-shale aggregates and having compressive strengths of 3,000 and 5,000 lb/in2 at 28 days are reported. These are compared with data for sand-gravel concretes of comparable strength.
C. H. Best, M. Polivka
openaire   +1 more source

Creep of concrete-filled steel tube considering creep-recovery of the concrete core

Advances in Structural Engineering, 2019
Concrete creep results in the strain increment of concrete-filled steel tube. In this article, a new method was established for creep prediction of concrete-filled steel tube considering the creep-recovery effect of the concrete core with creep model and separate creep-recovery model, named two-function method.
Shengqi Mei, Yuanfeng Wang, Ruofei Zou, Yunpeng Long, Jiechao Zhang   +4 more
openaire   +1 more source

The mechanism of creep in concrete

Matériaux et Constructions, 1968
AN ATTEMPT IS DESCRIBED TO FIND THE BASIC PHYSICAL FACTORS DETERMINING CREEP IN CEMENT PASTE, AND SELECT AMONG THE EXISTING THEORIES ON CREEP THE CORRECT ONE BY EXPERIMENTAL INVESTIGATIONS. CEMENT PASTE AND CONCRETE SAMPLES WERE DRIED, LOADED, AND RESATURATED AT VARIOUS TEMPERATURES.
openaire   +1 more source

The shrinkage and creep of concrete

Magazine of Concrete Research, 1959
Summary This paper describes an investigation made at the Laboratoires du Bâtiment et des Travaux Publics at Paris into the principal factors influencing the creep and shrinkage of concrete. The main conclusions drawn are that both creep and shrinkage are directly proportional to the amount of cement paste in the concrete, that creep is directly ...
openaire   +1 more source

Creep and shrinkage of concrete

Matériaux et Constructions, 1969
The paper gives a short description of the different types of test series on creep and shrinkage of concrete, which are under work at the Cement and Concrete Research Institute at the Technical University of Norway. Some results are given concerning creep and shrinkage of concrete under periodic changes in moisture content.
openaire   +1 more source

Prediction of creep of polymer concrete

Mechanics of Composite Materials, 1995
We studied the applicability of the phenomenological approach to the prediction of long-time creep of polymer concrete consisting of polyester binder with diabase filler and diabase aggregate. We discovered that the principles of temperature-time analogy, of moisture-time analogy, and of temperature-moisture-time analogy are applicable to the ...
Yu. Khristova, K. Aniskevich
openaire   +1 more source

Basic and drying creep of concrete

Matériaux et Constructions, 1969
From considerations of the gel compliance factor and of a creep parameter P, involving the volume concentrations of gel and of cement paste, and using a hyperbolic creep-time expression, an expression for creep of the type of Eq. (13) has been derived.
A. M. Neville, M. A. Ward, G. C. -S. Kwei   +2 more
openaire   +1 more source

Creep of Concrete in Bridge Standards

CONCREEP 10, 2015
As structural concrete is a continuously-developing material, evolution in the estimation of its material properties can be seen with the development of concrete technology. The paper reviews methods for predicting concrete creep in bridge structures. The principal variables that influence creep are outlined.
J. Hołowaty, D. Jurkowski
openaire   +1 more source

Recovery of creep and observations on the mechanism of creep of concrete

Applied Scientific Research, 1960
Test data on the recovery of creep of mortar specimens made with different cements are presented. It is shown that, whereas creep depends on the strength of mortar (as influenced by the cement), the creep recovery is not a function of this strength. From measurements on the change in weight of specimens, under load and free-standing, it is concluded ...
openaire   +1 more source

Prediction of creep of polymer concrete

Journal of Applied Polymer Science, 1999
Polymer concrete possesses viscoelastic properties conditioned by relaxation processes in the polymer binder. Their acceleration with an increase of temperature (principle of time–temperature equivalence) is used in predicting the long-term creep of polymer concrete. Physical aging of the polymer binder influences the creep of polymer concrete.
K. Aniskevich, J. Hristova
openaire   +1 more source