本研究為改良高性能纖維混凝土(Engineered Cementitious Composites，簡稱ECC)，透過使用兩種不同含量的飛灰作為礦物摻料(M16與F20)以及使用水淬高爐石粉作為礦物摻料(B36)的ECC配比，嘗試改變水膠比以及強塑劑的含量使其可適用於填充磚牆灰縫砂漿，並對改良後的ECC砂漿進行抗壓以及抗拉的力學性質測試，試驗結果顯示改良後的砂漿具有傳統ECC的高力學強度以及高韌性的特性，利用改良後的ECC砂漿改造磚造建築的灰縫，對其進行灰縫剪力試驗、撓曲黏結試驗以及磚墩抗壓試驗，探討材料組成變化對力學性質的影響。
試驗結果顯示，使用ECC改良傳統磚砌建築用的灰縫材料，可有效的改善紅磚與砂漿交界面的黏結力；PVA纖維的添加使灰縫砂漿具有較高的韌性，纖維可以抑制裂縫的產生，灰縫砂漿提供磚墩圍束的效果，可使磚墩在到達最大峰值破壞時，具有較大的變形量，並且在磚墩在達到破壞強度時可保持完整；且由於ECC高力學強度的特性，可以使磚墩的抗壓強度上升。

Masonry walls brittle and presents low mechanical strength. And the main disadvantage of the mortar used in the masonry wall is that the compressive strength is low and it is a brittle material. In the past research, if the bond and mechanical properties of the mortar can be strengthened. The seismic performance of the brick wall can be effectively improved. On the other hand, ECC (Engineered cementitious composite) is a class of HPFRCC (High-performance fiber-reinforced cementitious composites) that exhibits high ductility, a strain hardening response in direct tension and multiple cracking. In order to improve the performance of masonry walls, this study aims of the feasibility of using ECC for improving the bond strength between bricks. And improve the fluidity of ECC which has a high percentage of fly ash or slag.

The mechanical properties of the three mixtures design were studied, which has different aggregates of silica sand and river sand, and different PVA fiber volume fraction from 0 to 1.5 %. And used it to do prism for investigating the mechanical properties. The compressive and tensile strength of specimens which used three types of ECC are better than the specimens that used traditional cement mortar. And the compressive and ductility of specimens which used silica sand are better than river sand. The shear bond strength, flexural bond strength and compressive strength of prism specimens which used three types of ECC are better than the specimens that used traditional cement mortar. And the fiber in ECC contributes to increase bond strength and compressive strength.

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