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I V B S

Internationaler Verband der Betonbohr- und Sägeunternehmungen

I A C D S

International Association of Concrete Drillers and Sawers

A I E F S B

Association Internationale des Entreprises de Forage et de Sciage du Béton

Tolerances and Limits for Construction Drilling and Sawing Edition E Second edition May 2006 Final

Präsident / president / president: Patrick O’Brien, 11001 Danka Way North, Suite 1, St. Petersburg FL 33716, USA Tel +1 727 577 5004, Fax +1 727 577 5012, Email pat@csda.org Sekretariat / Secretary / Secrétariat: Oberdorfstrasse 40, Postfach CH-3053 Münchenbuchsee Tel +41 31 858 22 20 Fax +41 31 858 22 21 info@iacds.org www.iacds.org


Main authors: Kaspar Disch Heidenchilenstrasse 13 CH-8907 Wettswil Tel: + 41 44 700 34 92 Fax: + 41 44 700 32 66 Email: disch.firma@divico.ch Jan Lemos Betonghaltagning AB Vasavägen 16, Box 1137 S-171 22 Solna Tel: +46 8 27 77 72 Fax: +46 8 82 03 62 Email: Betonghaltagning.jl@telia.com

Š 2002-2006 IACDS


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 1

Preamble Tolerance evaluation of our specialized work can be viewed from a number of angles. Matters that we presently do not control sufficiently may well stand out and become the primary target for future development. It is during planning that tolerances form the preconditions for accuracy or possible limitations and the requirement profile for the tradesman. They are intended to separate the amateur from the professional and should be available for advice or as reference work if there is a difference of opinion. Among the various points of interest the tolerance Standard features limits that, for various reasons, can be different in the respective member countries. That is why these tolerances are mainly destined for national tolerances on the subjects proposed hereafter. National or supra-national limits for noise, transfer sound, safety at work, safety of machines and tools, pollution of air and water exist in most countries and are valid for everyone. IACDS will observe very special cases in these fields which require special limits for the concrete drilling and sawing industry. As long as it is not necessary we will not intervene. The Standard is constructed in such a way that national characteristics or information obtained from developments can be included at any time. The front page will always show the language, date of issue and identification of the respective state or country association. These tolerances and limits were accepted by the IACDS delegates at the meeting on May 18, 2006 at Krakow, Poland. We hope that this tolerance Standard will appeal to all associations and federations and thank you all for your contributions. Good Luck! Kaspar Disch, SVBS Switzerland Jan Lemos, HiB, Sweden


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 2

Table of contents I.

Explanation of terms......................................................................................................2

II.

Index, Definitions, Exceptions........................................................................................3

III.

What is the Purpose of the Standard? ...........................................................................3

IV.

Maximum Tolerances for Concrete Core Drilling with Diamond Tools in Horizontal and Vertical Structures .........................................................................................................4

V.

Maximum Tolerances for Diamond Sawing with Rail-mounted Wall and Plunge Blade Saws in Horizontal and Vertical Concrete Structures.....................................................4

VI.

Maximum Tolerances for Diamond Cutting with Rail-mounted (Track-mounted) Floor Saws in Horizontal Concrete Structures ........................................................................5 Maximum Tolerances for Diamond Cutting with Wheel Driven Floor Saws in Horizontal Concrete Structures ......................................................................................................5

VII.

Maximum Tolerances for Diamond Wire Saws in Horizontal and Vertical Concrete Structures......................................................................................................................6

VIII. Maximum Tolerances in Concrete Crushing in Horizontal and Vertical Concrete Structures......................................................................................................................6 IX.

I.

Maximum Tolerances in Concrete Bursting in Horizontal and Vertical Concrete Structures......................................................................................................................6

Explanation of terms

1. Angle accuracy Measured from walls, floors or ceilings of the directly adjoining components, applicable in cases in which the angle of the cutting or coring direction is not at right angles to the plane of the fixing device. Unit of measurement for deviations: mm per m1 / inch per ft1. 2. Directional accuracy Maximum deviation from the given direction of the coring or the cut. Unit of measurement for deviations: mm per m1 / inch per ft1. 3. Vertical Level, vertical: Maximum deviation in mm per m1 / inch per ft1. 4. Horizontal level, horizontal: Maximum deviation in mm per m1 / inch per ft1. 5. Surface roughing: Flatness of the drilled hole or cut surface. Precondition: To a large extent uniform structure of the body to be worked. Maximum deviation in mm / inch. 6. Section width or drill-hole diameter. Passage in a. Hollow cylinder or hole diameter. Maximum deviation in mm / inch. b. Thickness of cut, width of joint. Maximum deviation in % from target value. 7. Target depth of pocket hole or joint: Maximum deviation in mm / inch.


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 3

II.

Index, Definitions, Exceptions Definition Explanation > Greater than < Smaller than Equal or greater than d Dimension of the structure to work on t Drilling depth, depth of cut Ă&#x2DC; Diameter m Meter; 39.37 in Max. Maximum mm Millimeter; 0.0394 in In Inch; 25.4 mm (rounded from mm) Ft Feet; 304.8 mm (rounded from mm) Pocket hole Blind hole Crushing Crushing a concrete part by means of hydraulically operated crusher jaws. Bursting Predetermined fracture lines created by perforating a body with hydraulically operated burster heads introduced into auxiliary core drills.

Diving saws / plunge Special cutting method: Diamond blades are lowered into an auxiliary core sawing drill; usual method today: push cutting with wire saws (Chapter VII) Exceptions These limits are not valid for work that has to be executed with hand-held 1. machinery (e.g. chain saw, hand saw, etc.) According to the operation procedure enough space and load capacity 2. must be ensured depending upon equipment specifications. Coring and drilling depths are not unlimited. They depend upon the diame3. ter of the tools, the material to be worked on and the local conditions. They must therefore be pre-defined.

III.

What is the Purpose of the Standard?

Principle: 1. The Standard is intended to create trust, clarity and certainty between planners, contractors and building owners. 2. Planners should be able to rely on the fact that minimum tolerances are maintained in the concrete cutting industry at the quoted prices. The Standard represents the minimum. If planners require more accuracy this must be clearly stated in the tender specification documents. Tolerances tighter than those specified in the Standard will justify charging a higher price. These must be quoted individually.

Each country: 1. Each national association shall endeavour to have the Standard integrated in its national Standards. 2. It is recommended that members should make the Standard a constituent part of their General Conditions of Business. Members are recommended at least to append this Standard to every quotation or tender and by doing so make it an integral part of their offer.


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 4

IV.

Maximum Tolerances for Concrete Core Drilling with Diamond Tools in Horizontal and Vertical Structures

Alignment accuracy for all core drilling diameters and lengths: Center of circle to be drilled: ± 5 mm (0.2 in) plus 2,5% of the diameter

Core Drilling

Ø < 300 mm (11.8 in) d <1000 mm (39.4 in) 1

1.

Angle accuracy

± 85 mm/m

2.

Directional accuracy in oblique drilling

± 60 mm/m1 1

d

1000 mm (39.4 in)

± 85 mm/m1

± 1 in/ft 1

± 0.7 in/ft1

± 60 mm/m1

± 0.7 in/ft1

1

1

± 0.7 in/ft1 ± 0.7 in/ft1

± 1 in/ft

1

3.

Vertical

± 60 mm/m

± 0.7 in/ft

± 60 mm/m

4.

Horizontal

± 60 mm/m1

± 0.7 in/ft1

± 60 mm/m1

5.

Surface roughing drilled wall (evenness)

± 5 mm

± 0.2 in

± 15 mm ± 0.6 in

6.

Diameter of deviation from specified

± 3 mm

± 0.12 in

± 15 mm ± 0.6 in

Dimension 7.

Specified depth for pocket hole

Core Drilling (cont.)

± 10 mm ± 0.4 in

± 15 mm ± 0.6 in

Ø 301 mm – 1000 mm (11.8 in – 39.4 in) d <1000 (39.4 in)mm

d

1000 mm (39.4 in) to max

1.

Angle accuracy

± 85 mm/m1

± 1 in/ft 1

± 85 mm/m1

± 1 in/ft 1

2.

Directional accuracy in oblique drilling

± 60 mm/m1

± 0.7 in/ft1

± 60 mm/m1

± 0.7 in/ft1

3.

Vertical

± 60 mm/m1

± 0.7 in/ft1

± 60 mm/m1

± 0.7 in/ft1

4.

Horizontal

± 60 mm/m1

± 0.7 in/ft1

± 60 mm/m1

± 0.7 in/ft1

5.

Surface roughing of drilled wall (evenness)

± 10 mm ± 0.4 in

± 20 mm ± 0.8 in

Diameter of deviation from specified

± 10 mm ± 0.4 in

± 20 mm ± 0.8 in

± 10 mm ± 0.4 in

± 20 mm ± 0.8 in

6. 7.

V.

dimension Specified depth for pocket hole

Maximum Tolerances for Diamond Sawing with Railmounted Wall and Plunge Blade Saws in Horizontal and Vertical Concrete Structures

Alignment accuracy for all wall and diving blade saws: ± 10 mm (0.4 in) from target line

Diamond Cutting Ceilings+Walls

Ceiling or Wall Thickness d <300 mm (11.8 in) d 300 500 mm(11.8-19.7 in)

Remark: Tolerances are only valid for ceiling cuts from above. 1.

Angle accuracy

± 35 mm/m1

± 0.42 in/ft1

± 70 mm/m1

± 0.85 in/ft1

2.

Directional accuracy in relation to specified dimension in longitudinal direction

± 10 mm/m1

± 0.12 in/ft1

± 20 mm/m1

± 0.25 in/ft1

3.

Vertical

± 35 mm/m1

± 0.42 in/ft1

± 85 mm/m1

± 1 in/ft 1

4.

Horizontal

± 35 mm/m1

± 0.42 in/ft1

± 85 mm/m1

± 1 in/ft 1

5.

Surface roughing of cut surface (evenness) ± 5 mm

± 0.2 in

± 10 mm ± 0.4 in

6.

Cut width, deviation from specified dimension

± 10 % from target value

± 10 % from target value

7.

Specified depth

± 10 mm ± 0.4 in

± 15 mm ± 0.6 in


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 5

VI.

Maximum Tolerances for Diamond Cutting with Railmounted (Track-mounted) Floor Saws in Horizontal Concrete Structures

Alignment accuracy for all rail-mounted floor saws: ± 10 mm (0.4 in) from target line

Thickness, Cutting Depth d <100 mm (3.9 in) d 100 500 mm (3.9-19.7 in)

Diamond Cutting of Floors

Remark: Unevenness of the floor can’t be compensated. 1.

Angle accuracy

± 85 mm/m1

± 1 in/ft 1

± 85 mm/m1

± 1 in/ft 1

2.

Directional accuracy in relation to specified dimension in longitudinal direction

± 10 mm/m1

± 0.12 in/ft1

± 20 mm/m1

± 0.25 in/ft1

3.

Vertical

± 60 mm/m1

± 0.7 in/ft1

± 85 mm/m1

± 1 in/ft 1

4.

Horizontal

--

5.

Surface roughing of cut surface (evenness) ± 5 mm

6.

Cut width, deviation from specified dimension

± 10 % from target value

± 10 % from target value

7.

Specified depth at joint depth

± 10 mm ± 0.4 in

± 15 mm ± 0.6 in

-± 0.2 in

± 8 mm

± 0.3 in

Maximum Tolerances for Diamond Cutting with Wheel Driven Floor Saws in Horizontal Concrete Structures Alignment accuracy for all wheel driven floor saws: ± 10 mm (0.4 in) from target line

Diamond Cutting of Floors

Thickness, Cutting Depth d <100 mm (3.9 in) d 100 500 mm (3.9-19.7 in)

Precondition: A level track next to the cut to cater for the width of the equipment to be used (max. 1.3 m, 51.2 in) is necessary to ensure that the scheduled requirement figures can be achieved. Remark: Manually driven machines can be more accurate than motor driven machines. 1.

Angle accuracy

± 85 mm/m1

± 1 in/ft 1

± 85 mm/m1

± 1 in/ft 1

Directional accuracy in relation to specified dimension in longitudinal direction, cut 4 meters long

± 15 mm/m1

± 0.18 in/ft1

± 25 mm/m1

± 0.3 in/ft1

2. 3.

Vertical

± 60 mm/m1

± 0.7 in/ft1

± 85 mm/m1

± 1 in/ft 1

4.

Horizontal

5.

Surface roughing of cut surface (evenness) ± 5 mm

± 0.2 in

± 10 mm ± 0.4 in

6.

Cut width, deviation from specified dimension

± 10 % from target value

± 10 % from target value

7.

Specified depth at joint depth

± 10 mm ± 0.4 in

± 15 mm ± 0.6 in


IACDS Tolerances in the Concrete Cutting Industry / August 2002 / second edition May 2006 6

VII. Maximum Tolerances for Diamond Wire Saws in Horizontal and Vertical Concrete Structures Body Thickness d

d <150 cm (59.0 in)

150 cm 300 cm(59.0 – 118.1 in)

d 300cm(118.1 in)

Remark: Work carried out in stone quarries or under water is not included. 1.

Angle accuracy

±100 mm/m1 ± 1.2 in/ft1

±150 mm/m1

± 1.8 in/ft1

2.

Directional accuracy in relation to specified dimension in longitudinal direction

± 70 mm/m1 ± 0.85 in/ft1

± 100 mm/m1

± 1.2 in/ft1

3.

Vertical

± 50 mm/m1 ± 0. 6 in/ft1

± 50 mm/m1

± 0.6 in/ft1

4.

Horizontal

± 50 mm/m1 ± 0. 6 in/ft1

± 50 mm/m1

± 0.6 in/ft1

5.

Surface roughing of cut surface (evenness) ± 20 mm ± 0.8 in

± 30 mm ± 1.2 in

6.

Width of cut

± 10 % from target value

± 10 % from target value

No tolerances fixed yet

Wire Sawing

VIII. Maximum Tolerances in Concrete Crushing in Horizontal and Vertical Concrete Structures Body Thickness

Crushing

d 150 mm 300 mm (5.9 in 11.8 in)

d < 150 mm (5.9 in)

d > 300 mm 600 mm (11.8 23.6 in)

1.

Angle accuracy

±100 mm/m ±1.2 in/ft

1 1 ±100 mm/m1 ± 1.2 in/ft1 ±100 mm/m ± 1.2 in/ft

2.

Directional accuracy in relation to specified dimension in longitudinal direction

±300 mm/m1 ± 3.6 in/ft1

1 1 ±300 mm/m1 ± 3.6 in/ft1 ±300 mm/m ± 3.6in/ft

3.

Vertical

±100 mm/m ±1.2 in/ft

4.

Horizontal

5.

1

1

1

1

1 1 ±100 mm/m1 ± 1.2 in/ft1 ±100 mm/m ± 1.2 in/ft

±100 mm/m ±1.2 in/ft

1

1

1 1 ±100 mm/m1 ± 1.2 in/ft1 ±100 mm/m ± 1.2 in/ft

Flatness of the surface crushed

± 100 mm

± 100 mm

6.

Width of fracture

----

-----

-----

7.

Specified depth

----

-----

-----

IX.

± 3.95 in

± 3.95 in

± 150 mm ± 5.9 in

Maximum Tolerances in Concrete Bursting in Horizontal and Vertical Concrete Structures Bursting

Wall Thickness d < 600 mm (23.6 in) d 600 mm (23.6 in) to max

1.

Angle accuracy

±150 mm/m1

± 1.8 in/ft1

±150 mm/m1

± 1.8 in/ft1

2.

Directional accuracy in relation to specified dimension in longitudinal direction

±300 mm/m1

± 3.6 in/ft1

±300 mm/m1

± 3.6 in/ft1

3.

Vertical

±150 mm/m1

± 1.8 in/ft1

±150 mm/m1

± 1.8 in/ft1

4.

Horizontal

±150 mm/m1

± 1.8 in/ft1

±150 mm/m1

± 1.8 in/ft1

5.

Evenness of burst item

± 100 mm

± 3.95 in

± 150 mm

± 5.9 in

6.

Bursting width

7.

Specified depth


Tolerances and Limits For Construction Drilling and Sawing