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                當前位置:鋼纖維主要性能
                鋼纖維主要性能
                [來源:http://www.www.tjejtrampet.com] [作者:567zx] [日期:19-01-23] [瀏覽次數:]

                鋼纖維主要性能
                Main properties of steel fibers
                鋼纖維是一種新、高性能的鋼纖維品種。鋼纖維道路的配合比設計方法大體與普通混凝土相同,不同點為:強度雙控標準(抗壓強度和彎拉強度);鋼纖維摻量根據設計要求的彎拉強度確定;單位用水量和砂率與纖維摻量有關,每摻加0.5%(體積率)鋼纖維,單位用水量增加6kg,砂率增大2%。
                Steel fiber is a new and high performance steel fiber variety. The design method of steel fiber road mix ratio is basically the same as that of ordinary concrete. The differences are as follows: strength double control standard (compressive strength and flexural tensile strength); steel fiber content is determined according to the flexural tensile strength of design requirements; unit water consumption and sand content are related to fiber content, each adding 0.5% (volume ratio) steel fiber, unit water consumption increases by 6 kg and sand ratio increases by 2%.
                鋼纖維混凝土具有與普通混凝土一樣的攪拌、運轉和施工性能,纖維在混凝土中不會結球,分布均勻,可在商品混凝土攪拌站進行生產并能用于泵送施工。銑削鋼纖維混凝土的早期坍落度損失較大,30分鐘損失32%,2小時損失42%。鋼纖維混凝土的實際工作性優于相同的坍落度的普通混凝土。鋼纖維混凝土具有良好的材料性能,與普通混凝土相比,其抗壓強度提高2~20%;彎拉強度提高20~50%;劈裂抗拉強度提高20~40%;耐磨性能提高40%左右,其物理力理性能完全可以滿足城市道路工程及檢查井蓋等配套構件需求技術指標。鋼纖維粗糙而潔凈的表面,能與混凝土中的水泥漿體牢固的結合,這是銑削鋼纖維提高混凝土各種性能的根本原因。
                Steel fiber reinforced concrete (SFRC) has the same mixing, operation and construction performance as ordinary concrete. Fibers do not nod in concrete and distribute evenly. It can be produced in commercial concrete mixing station and can be used for pumping construction. The early slump loss of milling steel fiber reinforced concrete is large, 32% in 30 minutes and 42% in 2 hours. The actual workability of steel fiber reinforced concrete is better than that of ordinary concrete with the same slump. Compared with ordinary concrete, steel fiber reinforced concrete (SFRC) has good material properties. Compared with ordinary concrete, its compressive strength increases by 2-20%, flexural strength increases by 20-50%, splitting tensile strength increases by 20-40%, and wear resistance increases by about 40%. Its physical and mechanical properties can fully meet the technical requirements of supporting components such as urban road engineering and well cover inspection. The rough and clean surface of steel fibers can be firmly combined with cement paste in concrete, which is the fundamental reason for milling steel fibers to improve various properties of concrete.

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