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Most cement kilns today use coal and petroleum coke as primary fuels, and to a lesser extent natural gas and fuel oil. Selected waste and by-products with recoverable calorific value can be used as fuels in a cement kiln (referred to as co-processing), replacing a portion of conventional fossil fuels, like coal, if they meet strict specifications.
Mystery at the Museums is an educational video game developed by Binary Zoo Software and published by Artech Studios for MS-DOS in 1993. [1] The game is Binary Zoo's second release as well as the second in their Adventures With Edison series.
A single concrete block, as used for construction. Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. . Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material
The Pantheon in Rome is an example of Roman concrete construction. Caesarea harbour: an example of underwater Roman concrete technology on a large scale. Roman concrete, also called opus caementicium, was used in construction in ancient Rome. Like its modern equivalent, Roman concrete was based on a hydraulic-setting cement added to an aggregate.
[5] [6] [7] In the presence of water (during a rainstorm, for instance) unreacted cement particles recently exposed due to cracking hydrate and form a number of products (calcium silicate hydrates (C-S-H), calcite, etc.) that expand and fill in the crack. These products appear as a white ‘scar’ material filling in the crack.
Microsoft Office 1.5 for Mac was released in 1991 and included the updated Excel 3.0, the first application to support Apple's System 7 operating system. [175] Microsoft Office 3.0 for Mac was released in 1992 and included Word 5.0, Excel 4.0, PowerPoint 3.0 and Mail Client. Excel 4.0 was the first application to support new AppleScript. [175]
Microsoft Entertainment Pack: The Puzzle Collection is a collection of 10 puzzle computer games developed by Mir - Dialogue and published by Microsoft Games. The creator of Tetris, Alexey Pajitnov, designed some of the games featured in the pack. It was released on CD-ROM for Windows 95.
Straw, cement, or manure added to a standard adobe mixture can produce a stronger, more crack-resistant brick. [23] A test is done on the soil content first. To do so, a sample of the soil is mixed into a clear container with some water, creating an almost completely saturated liquid.