What is the purpose of keeping tremie pipe’s tip immersed in freshly-placed concrete for about 1m in underwater concreting?

  What is the purpose of keeping tremie pipe’s tip immersed in freshly-placed concrete for about 1m in underwater concreting? The size of tremie pipe is about 300mm with sections having flange couplings fitted with gasket to prevent water leakage. The tremie pipe should be closed initially to prevent water from entering the pipe. It should be designed with sufficient thickness and weight so that it would not be buoyant when empty inside water. The placement of tremie concrete is commenced by putting the closed pipe underwater to the location for concreting, followed by partial filling of tremie pipe with concrete. In order to have tremie concrete flowed out of the pipe, it is necessary to fill the pipe with concrete of sufficient height to overcome the water pressure and frictional head. After that the tremie pipe is raised about 150mm to allow concrete to flow out. To enhance sufficient bonding, each succeeding layer of concrete should be placed before the preceding layer has rea...
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LIST OF FILES TO BE MAINTAINED AT CONSTRUCTION SITE

LIST OF FILES TO BE MAINTAINED AT SITE

Various files are maintained at a Project Site. The following are the list of file to be maintained at site. The significance of the numbers provided is that they are unique to that particular document. Hence at all the sites, the numbering will be same for a particular document.

For the purpose of codification of files maintained at site, the numbers that existed before the certification is retained, except that it is prefixed with “ENGG / FL / __”, for convenience.

The title and reference numbers should be legible on the respective files.

 

Sl No

File Name

Reference No

1

MIS Reports

ENGG / FL / 12

2

Photocopies of documents: Land Ownership records / Title etc.

ENGG / FL / 14

3

 Test report / file

ENGG / FL / 20

4

Technical Review Committee M.O.M.

ENGG / FL / 22

5

Material estimation / Requisition file

ENGG / FL / 23

6

Steel correspondence / bills file

ENGG / FL / 24

7

Cement correspondence / bills file

ENGG / FL / 25

8

Tiles correspondence / bills file

ENGG / FL / 26

9

Material Reconciliation file

ENGG / FL / 28

10

QA / QC reports file

ENGG / FL / 29

11

Safety measures / accidents file

ENGG / FL / 30

12

Daily progress report file

ENGG / FL / 31

13

Project area statements / finishing schedules / services reports / preliminary costing

ENGG / FL / 32

14

Quantity estimation and costing file (Building wise)

Coding to different files for various buildings will be 33/A, 33/B etc.

ENGG / FL / 33

15

General estimation & costing file

ENGG / FL / 34

16

Architect’s / Consultant’s Agreement / Bills file

ENGG / FL / 35

17

Concrete Mix Design records

ENGG / FL / 40

18

Bills file-Civil Contractor

ENGG / FL / 41

19

Bills file- Electrical Contractor

ENGG / FL / 43

20

Bills file – sanitary / fire fighting contractor

ENGG / FL / 45

21

Bills file- lift contractor

ENGG / FL / 47

22

Bills file – HVAC contractor

ENGG / FL / 49

23

Bills file – building management systems contractor

ENGG / FL / 51

24

Bills file – land scaping contractor

ENGG / FL / 53

25

Project budget / cash outflow statements

ENGG / FL / 60

26

Superceded drawings file / folder

ENGG / FL / 73

27

As built drawings file

ENGG / FL / 74

28

Drawing File / Folder – Architectural

ENGG / FL / 75A

29

Drawing File / Folder – Structural

ENGG / FL / 75B

30

Drawing File / Folder – Plumbing

ENGG / FL / 75C

31

Drawing File / Folder – Electrical

ENGG / FL / 75D

32

Drawing File / Folder – Municipal Drawings

ENGG / FL / 75E

Comments

  1. UnknownJune 15, 2020 at 6:54 PM

    Its very usful for site engineer who is working on site

    ReplyDelete

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