𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cementing properties of oil-shale ash: I. Effect of burning method and temperature

✍ Scribed by M. Ish-Shalom; A. Bentur; T. Grinberg


Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
474 KB
Volume
10
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis


The oil crisis has prompted renewed interest in direct burning of oil shale as an alternative energy source. Amajor problem in this process is the large portion of ash produced. The cementing properties of this ash were investigated to determine its applicability as a building material.

In this paper, the effects of burning temperature and method of burning (rotary kiln and fluidized bed) on the strength of ash compacts were studied. All the ash samples gained considerable strength, indicating reasonable cementing properties. A maximum strength was obtained with ash samples produced at 700 to 900Β°C. In this range, strength values at 28 days of 260 and 450 kg/cm 2 in moist and autoclave curing, respectively, were obtaihed.

Die Energiekrise veranlasste ein erneutes Interesse an direkter

Verbrennung von Oelschiefer als eine Erd olersetzende Energiequelle. Ein Hauptproblem in diesem Prozess ist der grosse Anteil der dabei erzeugten Asche. Die Zementierungs-eigenscgften dieser Asche wurden untersucht, um seine Eignung als Baumaterial festzustellen. Hier wird uber den Einfluss von Verbreenungstemperatur und -system (Drehofen, Fliessbett) auff die Festigkeit yon Asche-Kompakten (PresskSrper) Berichtet. Alle Progekorper erreichten betr~chliche Festigkeit, was auf eine angemessene Zementierung-seigenschaft hinweist. Die hoehste Festigkeit wurde mit Aschenproben, hergestellt im Brennbereich yon 700" bis 900 Β°, erreicht.

In diesem Bereich wurden 28 Tage-Festigkeiten yon 260 und 450 kg/cm 2 bei feuchter bzw. autoklavierter Nachbehandlung erzielt.


πŸ“œ SIMILAR VOLUMES


Properties and structure of oil shale as
✍ H. Baum; I. Soroka; A. Bentur πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 644 KB

The composition and physical features of oil shale ash pastes were determined and compared with the corresponding properties of portland cement paste. In the first part presented here, the composition, chemically combined water, porosity (total, capillary and gel porosity), pore-slze and pore-slze

Preparation and properties of silica nan
✍ Gui-Mei Gao; Hai-Feng Zou; Shu-Cai Gan; Zhao-Jun Liu; Bai-Chao An; Ji-Jing Xu; G πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 688 KB

The method of preparing spherical silica nanoparticles from the oil shale ash (OSA) via the ultrasonic technique in the hydrolysis-condensation stage followed by azeotropic distillation, was reported. The effects of ultrasonic and azeotropic distillation on the particle size and distribution have be

Microstructural and physical properties
✍ Gui-Mei Gao; Xue-Chun Xu; Hai-Feng Zou; Gui-Juan Ji; Shu-Cai Gan πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 711 KB

## Oil shale ash Silica aerogels Surface modification agents Mesoporous materials The silica aerogels based on oil shale ash were successfully synthesized in the presence of different surface modification agents via ambient pressure drying. The organic modification of hydrogels was a crucial step