𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Mechanical properties of the aggregate and cement interface

✍ Scribed by Matthew J. Aquino; Zongjin Li; Surendra P. Shah

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
862 KB
Volume
2
Category
Article
ISSN
1065-7355

No coin nor oath required. For personal study only.

✦ Synopsis

The interface between aggregate and cement based matrices plays an important role in determining the properties of concrete. In an earlier study, a push-out test technique and a theoretical model were proposed to determine the stiffness, strength, and surface energy of the interface layer. To be valid material properties, these bond parameters should be independent of the geometry of the specimen, and this was confirmed in this study. The influence of neighboring sand and aggregate particles on the bond properties of the push-out aggregate was analyzed and found to be quite small. On the other hand, the addition of polymer latex and silica fume had major effects on the bond properties. All tests were performed in a closed-loop manner to obtain the load versus slip relationship. The microstructure of the interfacial zone was investigated with the use of backscattered electron imaging.

πŸ“œ SIMILAR VOLUMES

Mechanical characteristics of the stem-c
Mechanical characteristics of the stem-cement interface
✍ Kenneth A. Mann; Dr. Donald L. Bartel; Timothy M. Wright; Anthony R. Ingraffea πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 910 KB

## Abstract The mechanical characteristics of the interface between a metallic stem and the surrounding poly(methyl methacrylate) bone cement were determined from experimental tests and finite element analyses. Push‐through‐stem tests of straight and tapered titanium alloy stems, surrounded by ceme

Texture of calcium hydroxide near the ce
Texture of calcium hydroxide near the cement paste-aggregate interface
✍ Rachel J. Detwiler; Paulo J.M. Monteiro; Hans-Rudolf Wenk; Zengqiu Zhong πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 359 KB

Several researchers have been using an X-ray diffraction technique to examine the orientation of calcium hydroxide crystals at the interface between cement paste and aggregate. Recently, however, the use of X-ray diffraction for this purpose has been called into question because the goniometer sweep

The effects of a new mixing technique on
The effects of a new mixing technique on the properties of the cement paste-aggregate interface
✍ A.K. Tamimi πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 321 KB

This research programme is based on a mixing technique in which concrete is produced by adding water at two separate times.In the first stage; aggregate and a water content of 25% of the specified weight of cement were mixed for 30 sec; cement was then added and mixed for a further 60 sec. In the se