111111 Construction Materials Option 1

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Uploaded: 05.07.2013
Content: 30705115207667.rar (88,79 kB)
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Description

1. The value of the building materials industry in the country's capital construction
2. What is the raw material for the production of construction glass? Varieties of glassware in construction
3. Physical and chemical processes occurring during hardening Portland cement. Existing methods for accelerating the hardening of cement
4. Describe solutions for masonry, finishing and special solutions
5. Describe the manufacture of metal products and structures and allow a feasibility study for the use of metal structures in construction
6. Describe the technology and features of producing hot and cold asphalt concrete
Objective 1
The plant produces ceramic brick single medium density 1700 kg / m3. It was decided to master the production of single solid bricks sred¬ney density 1100 kg / m3 due to the use of wood additives. Determine the flow of pine sawdust to manufacture 3,000 units. lung porous brick, if the average density of pine is 480 kg / m3.
Task 2
The dry weight of limestone is 280 g, and after saturation with water - 298, the average density of limestone 2100 kg / m3. To determine the water absorption weight and volume, and porosity limestone, limestone if the true density is 2.65 g / cm3.
Objective 3
Concrete mark 300 has a composition by weight of 1: 2: 3.6 in B / C = 0.6. The average density of concrete mix in 2420 kg / m3. What kind of savings you can get for 1 m3 of concrete, if the terms of delivery facilities in operation in the strength of 30 MPa after 28 need not, and after 80 days. Raw materials - ordinary

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