Tài liệu SECTION 06100 - CONCRETE AND CONCRETE STRUCTURES ppt

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DIVISION 6 - CONCRETE AND CONCRETE STRUCTURES Concrete and Concrete

Structures-Section 06100

SECTION 06100 - CONCRETE AND CONCRETE

STRUCTURES

TABLE OF CONTENTS

1. DESCRIPTION.............................................................................................1

2. STANDARDS AND CODES............................................................................1

3. MATERIALS................................................................................................2

3.1 General........................................................................................................................2

3.2 Cement3

3.3 Aggregate....................................................................................................................4

3.3.1 FINE AGGREGATES

.........................................................................................................

5

3.3.2 COARSE AGGREGATE

......................................................................................................

6

3.4 Water for Concrete Mixing and Curing..........................................................................7

3.5 Admixtures...................................................................................................................7

4. CONCRETE CLASSES...................................................................................8

4.1 General........................................................................................................................8

4.2 Class Requirements......................................................................................................8

4.2.1 USES OF DIFFERING CLASSES OF CONCRETE

.......................................................................

9

5. MIX DESIGNS.............................................................................................9

5.1 Samples.......................................................................................................................9

5.2 Mix Design...................................................................................................................9

5.3 Adjustments During Progress of Work........................................................................10

5.4 Contents of Chlorides and Sulphates..........................................................................10

6. WATER - CEMENT RATIO............................................................................11

7. TESTING..................................................................................................11

7.1 Slumps 12

8. FORMWORK.............................................................................................13

8.1 Design 13

8.2 Construction...............................................................................................................13

8.3 General Requirements................................................................................................14

9. CONCRETING............................................................................................15

9.1 General......................................................................................................................15

9.2 Placing and Compacting.............................................................................................16

9.3 Weather Precautions..................................................................................................18

9.4 Continuity of Concrete Work.......................................................................................18

9.5 Batching.....................................................................................................................19

9.5.1 PORTLAND CEMENT

......................................................................................................

19

9.5.2 WATER 19

TECHNICAL SPECIFICATIONS - DIVISION 6Created on 18/04/2000 16:05:00 06100

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DIVISION 6 - CONCRETE AND CONCRETE STRUCTURES Concrete and Concrete

Structures-Section 06100

9.5.3 AGGREGATES

..............................................................................................................

19

9.5.4 BINS AND SCALES

........................................................................................................

19

9.6 Mixing and Delivery....................................................................................................20

10. CONCRETE PLACEMENT...........................................................................21

10.1 General....................................................................................................................21

10.2 Chutes and Troughs..................................................................................................21

10.3 Pumping...................................................................................................................21

10.4 Vibrating..................................................................................................................22

10.5 Concrete Consistency...............................................................................................22

11. JOINTS...................................................................................................22

11.1 General....................................................................................................................22

11.2 Construction Joints...................................................................................................22

11.3 Bonded Construction Joints......................................................................................23

11.4 Unbonded.................................................................................................................25

11.5 Expansion Joints.......................................................................................................25

12. CONCRETE FINISHING.............................................................................26

12.1 Finishing Concrete Surfaces.....................................................................................26

12.1.1 CLASS F1 – FORMED SURFACE

.....................................................................................

26

12.1.2 CLASS F2 – FORMED SURFACE

.....................................................................................

26

12.1.3 CLASS F3 – FORMED SURFACE

.....................................................................................

26

12.1.4 CLASS F4 – FORMED SURFACE

.....................................................................................

26

12.1.5 CLASS U1 – UNFORMED SURFACE

.................................................................................

27

12.1.6 CLASS U2 – UNFORMED SURFACE

.................................................................................

27

12.1.7 CLASS U3 – UNFORMED SURFACE

.................................................................................

27

12.2 Requirements for Formed Surfaces..........................................................................27

12.3 Remedial Treatment of Finished Surfaces.................................................................27

12.4 Fixing of Ironwork.....................................................................................................28

12.5 Reconstruction of Faulty Work..................................................................................28

13. CURING..................................................................................................28

13.1 Supplying Additional Moisture..................................................................................28

13.2 Preventing Moisture Loss..........................................................................................29

13.3 Waterproof Paper.....................................................................................................29

13.4 Plastic Sheets...........................................................................................................29

13.5 Curing Compounds...................................................................................................29

13.6 Forms 30

14. PLACING OF CONCRETE IN OR UNDER WATER...........................................30

15. WATERSTOPS.........................................................................................31

16. TOLERANCES..........................................................................................32

16.1 General....................................................................................................................32

TECHNICAL SPECIFICATIONS - DIVISION 6Created on 18/04/2000 16:05:00 06100

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DIVISION 6 - CONCRETE AND CONCRETE STRUCTURES Concrete and Concrete

Structures-Section 06100

16.2 Soffits 32

17. PRECAST CONCRETE ELEMENTS...............................................................35

17.1 General....................................................................................................................35

17.2 Materials..................................................................................................................35

17.3 Fabrication...............................................................................................................35

18. MEASUREMENT AND PAYMENT................................................................35

18.1 General....................................................................................................................35

18.1.1 MEASUREMENT

..........................................................................................................

36

18.1.2 PAYMENT

..................................................................................................................

36

TECHNICAL SPECIFICATIONS - DIVISION 6Created on 18/04/2000 16:05:00 06100

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DIVISION 6 - CONCRETE AND CONCRETE STRUCTURES Concrete and Concrete

Structures-Section 06100

SECTION 06100 - CONCRETE AND CONCRETE

STRUCTURES

1. DESCRIPTION

This Specification section addresses requirements and procedures for

concrete work which shall include, but not be limited to, preparing

concrete mixes of different classes, transporting and placing on

prepared surfaces or in pre-prepared forms, including supplying and

fixing of temporary and permanent formwork; vibrating, tamping and

curing. This Specification section shall be applicable to all concrete and

concrete construction including cast-in-place concrete elements, precast

concrete members and pre-stressed concrete works.

2. STANDARDS AND CODES

The following Standards and Codes in their latest edition shall be

particularly applied to Works covered by this Specification.

♦ AASHTO M6 - Fine Aggregate for Portland Cement Concrete

♦ AASHTO M33 - Preformed Expansion Joint Filler for Concrete

(Bituminous Type)

♦ AASHTO M115 - Asphalt for Dampproofing and

Waterproofing

♦ AASHTO M116 - Primer for Use With Asphalt in Dampproofing

and Waterproofing

♦ AASHTO M118 - Coal-Tar Pitch for Roofing, Dampproofing,

and Waterproofing

♦ AASHTO M148 - Liquid Membrane-Forming Compounds for

Curing Concrete

♦ AASHTO M153 - Preformed Sponge Rubber and Cork

Expansion Joint Fillers for Concrete Paving and Structural

Construction

♦ AASHTO M182 - Burlap Cloth made from Jute or Kenaf

♦ AASHTO T96 - Resistance to Abrasion of Small Size Coarse

Aggregate by Use of the Los Angeles Machine

♦ AASHTO T119 - Slump of Portland Cement Concrete

♦ AASHTO T134 - Moisture-Density Relations of Soil-Cement

Mixtures

TECHNICAL SPECIFICATIONS - DIVISION 6Created on 18/04/2000 16:05:00 06100

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