A Study on the Performances of the Cement-Based Crack Injection Materials

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Project title

Code/計畫編號

MOST104-2221-E019-048-MY3

Translated Name/計畫中文名

水泥基質裂縫注入材料性質之研究

Project Coordinator/計畫主持人

Jiang-Jhy Chang

Funding Organization/主管機關

National Science and Technology Council

Co-Investigator(s)/共同執行人

葉為忠

Department/Unit

Department of Harbor and River Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=11707976

Year

2016

Start date/計畫起

01-08-2016

Expected Completion/計畫迄

01-07-2017

Co-Investigator(s)

Wei-Chung Yeih

Bugetid/研究經費

720千元

ResearchField/研究領域

土木水利工程

本計畫擬針對水泥質系裂縫修補注入材料進行三年期之研究。第一年計畫乃是針對水泥質系裂縫修補注入材料的細度影響進行探討，將使用波特蘭一型水泥與超微細水泥進行研究，以瞭解不同細度水泥所形成之水泥漿，其注入能力以及硬固後的黏結能力是否能夠滿足需求。然後，再以表現較佳的水泥漿實際修補開裂的混凝土板塊試體，修補之後進行抗氯離子侵入能力的測試、抗腐蝕能力的測試、透水性能改變的測試以及修補後局部力學性質的測試，以明瞭所選擇之裂縫注入材料的能力。第二年計畫則是針對以卜作嵐材料改性之水泥質系裂縫注入材料進行探討。將使用第一年計畫中研究出較佳的水泥質系裂縫注入材料的配比進行加入卜作嵐材料改性的研究，擬採用的卜作嵐材料包括水淬爐石粉、偏高嶺土、微矽灰，預計卜作嵐材料的細度與添加量將影響最後的行為。所進行的試驗同樣包括了注入能力、硬固後的黏結能力、修補之後進行抗氯離子侵入能力的測試、抗腐蝕能力的測試、透水性能改變的測試以及修補後局部力學性質的測試，以明瞭所選擇之裂縫注入材料的能力。第三年計畫則是針對鹼活化爐石粉漿體進行探討，其中研究的變數主要為水淬爐石粉的細度以及緩凝劑的劑量。實驗的內容同樣包括了注入能力、硬固後的黏結能力、修補之後進行抗氯離子侵入能力的測試、抗腐蝕能力的測試、透水性能改變的測試以及修補後局部力學性質的測試，以明瞭所選擇之裂縫注入材料的能力。 We propose a three-year research project on studying the cement-based crack injection materials. In the first year, we focus on the influences of fineness of cement on properties of cement-based crack injection materials. The type I Portland cement and ultra-fine cement will be compared. The injection capability and bonding characteristics after hardening will be investigated. After this investigation, cement-based crack injection materials which pass the injection capability and bonding characteristic tests then will be used to seal cracked reinforced concrete slab. After repairing, the capability to resist chloride ion penetration, the corrosion prevention capability, water permeability and local mechanical behavior for repairing part will be checked to evaluate the performance of cement-based crack injection materials. In the second year, the cement-based crack injection materials modified by the pozzolain materials will be studied. Based on the research results from the first year, different pozzolain materials including slag, metakaolin and micro-silica will be added to modify the cement-based crack injection materials. It is expected the fineness of these pozzolain materials will dominate the behaviors of crack injection materials. The experiments include the injection capability, bonding characteristics after hardening, the capability to resist chloride ion penetration, the corrosion prevention capability, water permeability and local mechanical behavior for repairing part will be checked to evaluate the performances of these cement-based crack injection materials modified by the pozzolain materials. In the third year, the alkali-activated cement paste will be studied. The fineness of slag and the dosage of retarder will be the main variables. The experiments include the injection capability, bonding characteristics after hardening, the capability to resist chloride ion penetration, the corrosion prevention capability, water permeability and local mechanical behavior for repairing part will be checked to evaluate the performances of the alkali-activated slag paste.

Keyword(s)

水泥質系裂縫修補注入材料
水淬爐石粉
偏高嶺土
微矽灰
細度
cement-based crack injection materials
slag
metakaolin
micro-silica
fineness

DSpace CRIS

A Study on the Performances of the Cement-Based Crack Injection Materials

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