KSB CHTRa, Инструкция по установке и эксплуатации

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CHTRa
Measuring point properties:
▪ Measuring point arrangement is in accordance with DIN ISO 10816-1.
▪ For the type and quantity of the measuring instruments please refer to the P+I
diagram and the relevant list of measuring points. (
ð Section 10.5, Page 112)
▪ The frequency range shall be between 10 Hz and 1000 Hz (Class 3 to
DIN ISO 10816-1:1997-08).
▪ Larger drives and other large machines with rotating mass, positioned on rigid
and heavy foundations which are relatively stiff in the direction of the vibrations
measured.
10.2.6 Concrete quality
Admixtures
Admixtures are substances which are added to the concrete and which, by chemical
or physical action or both, change the properties of the concrete, e.g. its workability,
hardening or setting. They provide negligible bulk.
Strength class to DIN 1045
Table 33: Strength classes for concrete [N/mm²]
Exposure class Minimum compressive
strength class
Cylinder compressive
strength
Cube compressive strength
XC4 C25/30 25 30
Table 34: Strength classes for concrete [lb/sq in]
Exposure class Minimum compressive
strength class
Cylinder compressive
strength
Cube compressive strength
XC4 C25/30 3626 4351
Admixtures
For concrete and cement mortar - also for fixing any anchoring parts in position -
only admixtures as per item 2 and exhibiting a valid test symbol must be used, and
only under the conditions stated in the test certificate. Chlorides, chloride-containing
or other substances expediting the corrosion of steel must not be added to
reinforced concrete as well as concrete and mortar coming into contact with
reinforced concrete.
Minimum cement content allowing for admixtures
Table 35: Minimum cement content [kg/m³]
Minimum compressive strength class Minimum cement content of
compacted concrete
[kg/m³]
Water cement value ω for Z 35
B25/30 270 / 455 ≤ 0,60
Concrete consistency
▪ Concrete in consistency class F2
▪ Slump: 35 cm to 41 cm
▪
Slump: 14 inches to 16 inches