AI SearchHydration heat modeling of high replacement slag concrete (Record no. 56739)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04696nas|a2200433 i 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818134006.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 111099s1999 th uzm rtt 00| a1eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b11763188 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no. ST-99-09 |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pa Pa Win |
| 245 10 - TITLE STATEMENT | |
| Title | Hydration heat modeling of high replacement slag 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. | 1999 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 74 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ST-99-09 |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Eng.) - Asian Institute of Technology, 1999 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Microcracks happen in massive concrete structures due to the internal temperature rise as a result of exothermic chemical reaction of cement. Since concrete possesses low thermal conductivity, the condition inside it is close to the adiabatic one. Among the various techniques of solving this temperature rise problem; the utilization of pozzolans like blast furnace slag as cement replacement material is one of the powerful tool for many reasons. Slag is hydraulic blending material and because of this, it shows two opposite manners on hydration process of cement when used as cement replacement material. It has physical effect of acceleration on hydration heat rate by serving additional nucleation site for precipitation of hydrates from cement which we called "filler effect". Since slag itself can react with Ca (OH)2 as well as water, it cannot serve totally as filler effect. The filler effect largely depends upon its reaction condition. But as opposite extreme cases, like high replacement cases, the slag reaction will stagnate due to the shortage of activator or water, its behavior rather similar to the inert powder and filler effect will be prominent. For filler effect, the ratio of total surface area of slag and cement is used as a base factor and also affected by shortage of Ca(OH)2 and water. It will accelerate after stage II of C3S. While hydrating, eventhough chemical reaction of slag depend on availability of activator, it can show its active and hydraulic behavior before degree of hydration of about 10%. Within this stage, regardless of the amount of activator in the solution if it is in activator ambient and its water soluble parts react freely with water. Ca(OH)2 present in the solution act as catalyst for their reaction. So there is no chemical reduction effect of slag on hydration of cement. After that, the shortage of Ca(OH)2 and free water in the solution plays an important role and retard the hydration heat rate of blended material up to some extent. At and after the Degree of hydration of slag 10%, negative values of available Ca(OH)2 found in the analysis are set to be zero because slag can behave as inert powder in the absent of activator, but the excess amount of Ca(OH)2 (positive values ) are kept for next step of calculation. Overall behavior of blended cements with pozzolans is reduction of hydration heat rate, although consideration are taken as one accelerating (due to physical effect) and the other reduction effect (due to chemical reaction). Implementation of above considerations for slag material into multi-component hydration heat model (COMH3) has been successfully executed the matching results of experimental and analytical values on verifications make the model more complete and a useful tool. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Hydration |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Slag cement |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Toshiharu Kishi, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pennung Warnitchai, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nii, Kazuyoshi, |
| Relator term | Examination committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Somnuk Tangtermsirikul, |
| Relator term | Scholarship donor |
| 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-99-09 |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B12698">http://203.159.5.9/ait-thesis/detail.php?q=B12698</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b11763188 |
| b | mnait |
| c | y |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240419 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 991011 |
| First date, FD (RLIN) | m |
| -- | a |
| -- | y |
| -- | 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 : 30050120709117 |
| CREATED | CREATED : 1998-05-14 |
| RECORD Id | RECORD # : i12155275 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050120709083 |
| CREATED | CREATED : 1998-05-14 |
| RECORD Id | RECORD # : i12155287 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : 30050160101696 |
| CREATED | CREATED : 2016-04-21 |
| RECORD Id | RECORD # : i12944920 |
| 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 | Cost, normal purchase price | 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 | 50.00 | AIT Thesis no. ST-99-09 | 30050120709117 | 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 | 50.00 | AIT Thesis no. ST-99-09 | 30050120709083 | 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-99-09 | 30050160101696 | 18/08/2026 | 1 | 18/08/2026 | 40-Archives |