𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Effect of heat treatment conditions on the pore structure of cement mortars

✍ Scribed by A. Bajza; I. Rouseková

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
168 KB
Volume
13
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis

It has been experimentally determined to what degree does the non-evaporable water content, total porosity, and strength of portland cement mortars depend, under otherwise constant conditions, on the temperature, time, and mode of curing. Such data are important in determining the best curing conditions for pre-fabricated concrete products. This note summarizes the results obtained. Details of mortar composition and curing practices were given in (I).

The following three curing conditions were utilized: Method A. --hotair curing with mortar surface covered; Method B. --hot-air curing with mortar surface uncovered, and Method C. --hot-air curing during temperature increase, followed by steam curing (RH = 95-100%) during isothermal curing ... uncovered mortar surface (Table I).

The non-evaporable water content of the pastes was estimated using DTA/TGA as LOI between I00 ° -450 ° C (C-S-H, AFt, AFm phases), 450 °-600°C (CH), and 600 ° -IO00°C (CaC03). No special precautions were made to prevent carbonation.

📜 SIMILAR VOLUMES

The effect of different drying technique
The effect of different drying techniques on the pore size distribution of blended cement mortars
✍ L. Konecny; S.J. Naqvi 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 471 KB

Porosity and pore size distribution measurements using mercury intrusion are reported for blended mortars (incorporating fly ash) dried by four different drying techniques. The drying techniques were: direct oven drying, solvent replacement drying, and two variations of freeze drying. Significant di

The effect of fillers on strength of cem
The effect of fillers on strength of cement mortars
✍ I. Soroka; N. Setter 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 456 KB

The effect of three fillers (ground limestone, dolomite and basalt) on the strength of cement mortars was studied on 1:2.75 mixes having a w/c ratio of 0.70. The filler content ranged from i0 to 40% of the cement weight and their fineness (specific surface) from 1,150 to 11,200 sq.cm per g. Results

Effect of cement composition on the expa
Effect of cement composition on the expansion of heat-cured cement pastes
✍ I. Odler; Y. Chen 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 544 KB

## ABsmcT On 20 cement pastes made from cements of variable C3A and SO3 contents and cured at different curing conditions the effect of cement composition on the extent of expansion was studied. It appears that the extent of the generated expansion depends especially on the C3A and SO3 contents in

The contradictory effects of pores on fa
The contradictory effects of pores on fatigue cracking of bone cement
✍ Dennis Janssen; René Aquarius; Jan Stolk; Nico Verdonschot 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 280 KB 👁 1 views

## Abstract The beneficial effect of porosity reduction on the fatigue life of bone cement has been demonstrated in numerous experimental studies. Clinically, however, it seems that the beneficial effect of porosity reduction of cement around total hip replacement components can only be found in la