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        吳   捷 ，鄧   愷 ，周   全 ， 陳雅秋 ，梅   偉

                                                             （華潤(rùn)水泥技術(shù)研發(fā)有限公司 ，廣州 510460)

摘    要 ：通過(guò)單摻硅灰 、粉煤灰 、礦粉和三者復(fù)摻 ，研究了其對(duì) 3D 打印復(fù)合漿體流變性和可建造性的影 響。結(jié)果表明：?jiǎn)螕椒勖夯?/span> 、礦粉 、硅灰漿體的靜態(tài)屈服應(yīng)力隨著摻量的增加而逐漸增大 ；隨著粉煤灰和礦粉 摻量的增加 ，漿體圓筒坍落度和流動(dòng)度呈現(xiàn)遞增的趨勢(shì) ，摻加硅灰呈現(xiàn)相反趨勢(shì)。而三者互摻時(shí)與單摻可能呈 現(xiàn)不同規(guī)律 ，單摻 4% 硅灰時(shí) ，屈服應(yīng)力和流動(dòng)度良好 ，單摻 5% 礦粉時(shí) ，效果最佳 ；單摻 30% 粉煤灰時(shí) ，漿體 流變性能最佳 ；三者互摻時(shí) ，硅灰摻量為 4% 、礦粉摻量為 5% 、粉煤灰摻量為 10% ,  3D 打印復(fù)合漿體流變性和 可建造性。

關(guān)鍵詞：硅灰 ；粉煤灰 ；礦粉 ；復(fù)摻 ；流變性

中圖分類號(hào)：TU52           文獻(xiàn)標(biāo)志碼：A        

文章編號(hào)： 1005- 8249   (2025)  03- 0068- 05 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .03 .013

WU Jie¹, WEI Fuhai², CHEN Yaqiu¹, MEI Wei¹, DENG Kai¹, ZHOU Quan¹

(1. China Resources Cement Technology R& D Co., Ltd., Guangzhou 510460, China;

2. China Resources Concrete (Baise) Co., Ltd., Baise 533000, China)

Abstract：The effects of single addition of silica fume, fly ash, mineral powder and their mutual blending on the rheological properties and constructability of 3D printing composite slurry were investigated. The results show that the static yield stress of the slurry with single addition of fly ash, mineral powder and silica fume gradually increases with the increase of the addition amount. With the increase of the addition amount of fly ash and mineral powder, the cylinder collapse degree and fluidity of the slurry show an increasing trend, while the addition of silica fume shows the opposite trend. When the three are added mutually, the possible rules may be different from those of single addition. When 4% silica fume is added singly, the yield stress and fluidity are good; when 5% mineral powder is added singly, the effect is the best; when 30% fly ash is added singly, the rheological properties of the slurry are the best. When the three are added mutually, the rheology and constructability of the 3D printing composite slurry are the best when the addition amount of silica fume is 4%, the addition amount of mineral powder is 5%, and the addition amount of fly ash is 10%.

Key words :  silica fume;  fly ash;  mineral powder;  compound addition;  rheological property

作者簡(jiǎn)介： 吳    捷  (1997—) ,   女 ，碩士 ，研究方向： 建筑材料。

收稿日期：2024 - 1 1 - 10