istobal Twash 4TA6000, Гражданские и монтажные работы

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8
GB
BUILDING SPECIFICATIONS
2
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Granulometry
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Fractions going through the 0.08 sieve will be smaller than
half the fractions sieved with the 0.40 sieve. Measured by
weight.
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Maximum aggregate size will be smaller than half the
compacted layer.
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The fraction retained by Sieve 5 should at least have 50%
(weight) elements with two or more fracture surfaces.
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Abrasion measured by Los Angeles test should be lower
than A 30.
- The material must be non-plastic and the sand-content
equivalent must be over A 35.
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CBR > 80 for 100% compaction, Modified Proctor Test
•
Compacted density - Over 100% of maximum density. Modified Proctor Test
density, even in singular project areas (edges, meeting
points, elements).
2.4. Reinforced concrete slab
•
Thickness
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See civil works ground plan.
•
Reinforcement
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Electro-welded mesh AEH 500 (fyk=5100 Kp/cm2)
•
Slopes
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See civil works ground plan.
•
Contraction joints - every 5.0 m
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width 4 mm
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depth 40 mm
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Expansion joints
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every 25.0 m
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width 20 mm
- filled and sealed
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Finishing process
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Spreading and compacting with concrete screeder.
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Surface smoothing by screeder.
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Mechanical floating once concrete is resistant enough
(helicopter, fixed flat propeller).
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Repeat previous operations as many times as necessary
until the desired finish is obtained. In our case, surface
finish must be non-slip.
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Curing by wax-based curing liquid (Bettocure-C).