AI SearchMovement of water in concrete incorporating air-phase (Record no. 78762)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 04567nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818155827.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 270798 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10454792 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. ST-91-23 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sharma, Anil |
| 245 10 - TITLE STATEMENT | |
| Title | Movement of water in concrete incorporating air-phase |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1991 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 90, A-3, B-2, C-2 p. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ST-91-23 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of t he requirement for the degree of master of engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1991 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The longevity and durability of concrete remain a continuing a rea of research activity a nd thought . The process of deterioration of concrete is mediated largely by water . I n this research the movement of water in the capi11ary pore s paces of concrete was studied indifferent conditions . In the present study key is the consideration of multi - phase or Gas-Liquid movement, liquid phase movement is associated with the gas phase. Water plays a dual role in corrosion phenomenon. It acts as the carrier medium for some elements of corrosion like Cl- in its liquid phase , o n t he other ha nd it prevents the passage of other elements like o2. For corrosion of steel lying just below t he cover concrete , the alternate wetting a nd drying cycle is very dangerous as he r e the ingress of elements of corrosion can take place . In this study the movement of water in the wet tingcycle was considered mainly in t he concrete of various mix proport ions. Here water moves as a liquid in the capillary pore spaces of concrete, driven by t he forces of surface tension, pressure gradient and is resisted by t he friction between wat e r and concrete. The effect of water/cement ratio , absorption pressure , length of specimen, curing age , initial conditions , bleeding , and gravity on the water movement was studied . In the field structures, deterioration level s are different in bridge deck like structures a nd column structures. I n this study, for a l 1 the tests two boundary conditions A a nd B we reused, simulating the field situation in above two types of structures. Boundary conditions are related to the movement of the air phase. In boundary condition A, since the top face is open so gas phase movement is free, as water comes in t he capillary pore spaces air escapes from t he top. In boundary condition B, since top face is sea led so gas phase movement is stopped. As water movement occurs , space available to air reduces a nd a pressure 4 Pa is applied on t he incoming water . Specimens with boundary condition A showed larger moisture absorption than ones with boundary condition B. The effect of boundary conditions is more prominent in longer specimens and in specimens made with mortar concrete of larger W/C ratio . General formulation for multi - phase water movement in concrete is presented. A mode l is developed considering the equilibrium of forces, for the liquid water movement drive n by surface tension and pressure a nd resisted by the s hear friction be tween wat e r a nd concrete . Results obtained from the mode l were compared with experimental results a nd they s how very good agreement . |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Concrete |
| General subdivision | Permeability |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Maekawa, Koichi, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pichai Nimityongskul, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yamaguchi, Hiroki, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Government of Japan, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. ST-91-23 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B17731">http://203.159.5.9/ait-thesis/detail.php?q=B17731</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10454792 |
| b | mnait |
| c | s |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240402 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | s |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnait |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 20-AIT Publication |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 40-Archives |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050003065421 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i1056939x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120689285 |
| CREATED | CREATED : 1995-10-15 |
| RECORD Id | RECORD # : i10569406 |
| LPATRON | LPATRON : 1011384 |
| LCHKIN | LCHKIN : 2001-03-03 |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 4 |
| -- | TOT RENEW : 1 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160022496 |
| CREATED | CREATED : 2016-04-04 |
| RECORD Id | RECORD # : i12922390 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. ST-91-23 | 30050003065421 | 18/08/2026 | 1 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | AIT Publications | 18/08/2026 | AIT Thesis no. ST-91-23 | 30050120689285 | 18/08/2026 | 2 | 18/08/2026 | 20-AIT Publication | ||||
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no. ST-91-23 | 30050160022496 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |