AI SearchIdealization of water absorption in concrete (Record no. 57460)
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|---|---|
| fixed length control field | 04181nam a2200409 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818134200.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 220798 th eng |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b10346284 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.ST-92-18 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pokharel, Achyut Prased |
| 245 10 - TITLE STATEMENT | |
| Title | Idealization of water absorption in concrete |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Bangkok : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 1992 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 51, A-6 leaves |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ST-92-18 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1992 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Today's interest to engineers toward predicting the durability of concrete is the author's concern of this study. The process of deterioration of concrete structures are partly and chiefly mediated by movement of water and the situation is more severe in case of alternate wetting and drying cycles. The problem is multiphase movement of water in concrete capillaries. In this study, the water movement in wetting cycle with respect to changing water to cement ratios, viz., 40%, 45%, 50%, 55% and 60%, and with varying sand contents, including cement pastes are conducted in laboratory test set-up conditions. The sorptivities values of the test specimens are found rather low, i.e., saturated level rise in the test specimens are very low despite the very high value of surface tensions in representative capillary. Here, a existence of some initial static resisting force in microscopic level is recognized as necessary. The previous work done, by Sharma, A., on this regard is enhanced here in two aspects, one by introducing a static resisting force 11 Yield Shear 11 in microscopic level and the next is a direct approach is applied to equiliberate the driving force from surface tension on a representative capillary to all resisting forces generated from the movement of water. The dynamic resisting force is associated with friction coefficient and rate of level rise. The yield shears and friction coefficients are computed by model with experimental results for given water to cement ratios and mix proportions of sands. These parameters are measure of material properties of a cement mortar. After conducting this investigations, the model is visualized as a development of interface channels system, just like a irrigation canal system and a rice field, with inclusion of sand in cement paste matrix as boulders. First inclusion of sand in dispersed state imparts high resistance to water movements as the path length increases than in a paste matrix without sand and as the absorbant agent to take capillary water from cement paste dispersion. On the other side, densely spaced sand particles are found to develop a sort of continuous interface channels system in which a rapid water movement is expected and paste matrix is in turn irrigated through these channels. |
| 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 | The Government of Germany (DAAD), |
| 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-92-18 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href=" http://203.159.5.9/ait-thesis/detail.php?q=B16916"> http://203.159.5.9/ait-thesis/detail.php?q=B16916</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b10346284 |
| b | mnait |
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| a | 240402 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 2 |
| Cataloger's initials, CIN (RLIN) | 951012 |
| First date, FD (RLIN) | m |
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| 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 : 30050003065819 |
| CREATED | CREATED : 1995-10-14 |
| RECORD Id | RECORD # : i10430660 |
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| Barcode | Barcode : 30050003065793 |
| CREATED | CREATED : 1995-10-14 |
| RECORD Id | RECORD # : i10430672 |
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| Barcode | Barcode : 30050160022264 |
| CREATED | CREATED : 2016-04-04 |
| RECORD Id | RECORD # : i12922924 |
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| 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-92-18 | 30050003065819 | 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-92-18 | 30050003065793 | 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-92-18 | 30050160022264 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |