GB/T 328.25-2007Test methods for building sheets for waterproofing -- Part 25: Bitumen, plastic and rubber sheets for waterproofing-resistance to static loading (English PDF)

Foreword

GB/T 328 "Test Methods for Building Sheets for Waterproofing" is divided into the

following 27 parts:

— Part 1: Bitumen Plastic and Rubber Sheets for Waterproofing - Rules for

Sampling;

— Part 2: Bitumen Sheets for Waterproofing - Visible Defects;

— Part 3: Plastic and Rubber Sheets for Waterproofing - Visible Defects;

— Part 4: Bitumen Sheets for Waterproofing - Thickness and Mass per Unit Area;

— Part 5: Plastic and Rubber Sheets for Waterproofing - Thickness and Mass per

Unit Area;

— Part 6: Bitumen Sheets for Waterproofing - Length, Width and Straightness;

— Part 7: Plastic and Rubber Sheets for Waterproofing - Length, Width,

Straightness and Flatness;

— Part 8: Bitumen Sheets for Waterproofing - Tensile Properties;

— Part 9: Plastic and Rubber Sheets for Waterproofing - Tensile Properties;

— Part 10: Bitumen Plastic and Rubber Sheets for Waterproofing - Watertightness;

— Part 11: Bitumen Sheets for Waterproofing - Flow Resistance at Elevated

Temperature;

— Part 12: Bitumen Sheets for Waterproofing - Dimensional stability;

— Part 13: Plastic and Rubber Sheets for Waterproofing - Dimensional Stability;

— Part 14: Bitumen Sheets for Waterproofing - Flexibility at low temperature;

— Part 15: Plastic and Rubber Sheets for Waterproofing - Foldability at Low

Temperature;

— Part 16: Plastic and Rubber Sheets for Waterproofing - Exposure to Liquid

Chemicals Including Water;

— Part 17: Bitumen Sheets for Waterproofing - Adhesion of Granules;

— Part 18: Bitumen Sheets for Waterproofing - Resistance to Tearing (Nail Shank);

— Part 19: Plastic and Rubber Sheets for Waterproofing - Resistance to Tearing;

— Part 20: Bitumen Sheets for Waterproofing - Resistance to Peeling of Joints;

— Part 21: Plastic and Rubber Sheets for Waterproofing - Resistance to Peeling of

Joints;

— Part 22: Bitumen Sheets for Waterproofing - Resistance to Shearing of Joints;

— Part 23: Plastic and Rubber Sheets for Waterproofing - Resistance to shearing

of Joints;

— Part 24: Bitumen Plastic and Rubber Sheets for Waterproofing - Resistance to

Impact;

— Part 25: Bitumen Plastic and Rubber Sheets for Waterproofing - Resistance to

Static Loading;

— Part 26: Bitumen Sheets for Waterproofing - Dissoluble Composite of

Membrane (Impregnated and Coated Asphalt Amount);

— Part 27: Bitumen Plastic and Rubber Sheets for Waterproofing - Water

Absorption.

This Part is Part 25 of GB/T 328.

This Part is identical to EN 12730:2001 "Flexible Sheets for Waterproofing - Bitumen

Plastic and Rubber Sheets for Roof Waterproofing - Determination of Resistance to

Static Loading" (English edition).

Chapter and article numbers of this Part are consistent with those of EN 12730:2001.

In order to make it convenient for use, this Part makes the following editing

modifications:

a) "This European Standard" is changed into "this Part";

b) "EN 13416" is changed into "GB/T 328.1";

c) The foreword and normative references of EN 12730:2001 is deleted; the

foreword of this Part is re-compiled.

This Part was proposed by China Building Material Industry Association.

This Part shall be under the jurisdiction of National Technical Committee on

Constructional Materials and Decorative Materials of Standardization Administration

of China (SAC/TC 195).

Chief drafting organizations for this Part: China Chemical Building Material Company

Suzhou Waterproof Material Research and Design Institute, and Technical

Test Methods for Building Sheets for Waterproofing -

Part 25: Bitumen Plastic and Rubber Sheets for

Waterproofing - Resistance to Static Loading

1 Scope

This Part of GB/T 328 specifies a test for puncture by static loading for roofing

membranes. Mechanical stress on membranes varies from static long-term loads to

dynamic short-term loads. This method represents the static category of load where

the stress is applied over a period of time.

This Part may also be applicable to waterproofing.

2 Normative References

The following normative documents contain provisions which, through reference in

this text, constitute provisions of this Part of GB/T 328. For dated references, then

subsequent amendments revisions of these publications do not apply. However,

parties who enter into an agreement based on this Part are encouraged to investigate

the possibility of applying the most recent editions of the normative documents

indicated below. For undated references, the latest edition of the normative document

referred to applies.

GB/T 328.1 Test Methods for Building Sheets for Waterproofing - Part 1: Bitumen

Plastic and Rubber Sheets for Waterproofing - Rules for Sampling

3 Definition

For the purpose of this Part of GB/T 328, the following definition applies.

Top surface

The upper side of the sheet, as used in situ. It is usually the inside of the roll.

Note: "Surface" in EN 12730:2001 is changed into "Top surface" in this Part.

4 Principle

The test specimens are conditioned at least 24 h at the specified test conditions.

8 Procedure

9 Expression of Results

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