<var id="lrprb"></var>

    <listing id="lrprb"></listing>

      <address id="lrprb"><big id="lrprb"><progress id="lrprb"></progress></big></address>

        <form id="lrprb"><sub id="lrprb"></sub></form>

          <track id="lrprb"><sub id="lrprb"></sub></track>

          <noframes id="lrprb">

            <thead id="lrprb"></thead><ol id="lrprb"><font id="lrprb"><pre id="lrprb"></pre></font></ol>

              <track id="lrprb"></track><dfn id="lrprb"><address id="lrprb"></address></dfn>

                <video id="lrprb"><progress id="lrprb"><nobr id="lrprb"></nobr></progress></video>

                聯系電話:13292436688

                河北貝卡纖維制造有限公司
                電話:13292436688
                聯系人:劉淑賢
                地址:河北唐山玉田楊家套
                網址:www.www.tjejtrampet.com
                當前位置:鋼纖維混凝土是在混凝土中摻入鋼纖維而改善性能的復合材料
                鋼纖維混凝土是在混凝土中摻入鋼纖維而改善性能的復合材料
                [來源:http://www.www.tjejtrampet.com] [作者:不詳] [日期:21-02-04] [瀏覽次數:]

                鋼纖維混凝土是在混凝土中摻入鋼纖維而改善性能的復合材料。它具有普通鋼筋混凝土所沒有的許多優良品質:如抗拉強度、抗彎強度、抗裂強度、韌性或抗沖擊性能都可獲得改善。 Steel fiber reinforced concrete is mixed with steel fiber in concrete and improve the performance of composite materials. It has a lot of ordinary reinforced concrete have no good quality, such as tensile strength, bending strength and crack resistance strength, toughness and shock resistance can be improve. 混凝土的缺點之一是抗拉強度甚小,僅為1.5~3.0MPa,而鋼材則可達到400~1000MPa;混凝土的第二個缺點是抗拉斷裂應變值很小,在10-4間,而鋼材則在10-1間;混凝土的第三個缺點是因以上兩個缺點的結果,及混凝土呈脆性,能量吸收小,抗沖擊性能差,易發生裂縫。由于混凝土本質上的缺陷,使混凝土這種廉價材料在某些領域應用受到限制。鋼纖維的出現使混凝土的這些缺陷得到大大改善,也使混凝土的某些性能指標改變數倍之多。 One disadvantage of concrete is the tensile strength is very small, only 1.5 ~ 3.0 MPa, while steel can reach 400 ~ 1000 MPa; A second drawback of a concrete is tensile strain value is very small, between 10-4, while steel between 10-1; Concrete of the third disadvantage is that because of the drawback of the above two results, and the concrete is brittle, small energy absorption, shock resistance is poor, prone to fracture. Due to the defects of concrete in nature, makes concrete the cheap material application in some fields is restricted. The defects of the appearance of the steel fiber reinforced concrete have been improved greatly, and makes concrete some performance index change several times as much. 1911年至1933年間,美、英、法等國有人相繼建議在混凝土中摻加鋼纖維以改善性能。四十年代至五十年代意大利人發明了鋼絲網水泥,實際上即為連續鋼纖維增強混凝土。六十年代,美國研制成功熔鋼抽絲法工藝生產鋼纖維,致使鋼纖維成本大降,這就為鋼纖維混凝土的廣泛應用鋪平了道路。七十年代,超塑化學外加劑的產生,使鋼纖維混凝土的質量和施工性能得到了顯著改善。八十年代,國際上先后研制出一些新型鋼纖維品種,這種纖維除考慮鋼纖維在混凝土中增強作用外,還考慮了鋼纖維應具備良好的施工性能。 Between 1911 and 1933, the United States, Britain, France and other state-owned people have suggested that adding steel fiber in concrete to improve performance. Italians invented the '40 s to 50 s ferrocement, actually is the continuous steel fiber reinforced concrete. The sixties, the successful development of molten steel reel off raw silk from cocoons production method of steel fiber, the steel fiber cost down, this is paving the way for the widely application of the steel fiber reinforced concrete. In the seventy s, the superplasticity of chemical admixtures produce, make the quality of the steel fiber reinforced concrete and construction performance is significantly improved. In the eighty s, the world has developed some new varieties of steel fibers, the fiber besides considering steel fiber enhanced role in concrete, considered both the steel fiber should possess good construction performance.

                版權 ? 河北貝卡纖維制造有限公司 網址:www.www.tjejtrampet.com 尼龍輸送帶 河北立體車庫 防撞墻模具 大棚遮陽網 麻繩
                保定網站建設及優化保定遨游網絡公司

                  <var id="lrprb"></var>

                  <listing id="lrprb"></listing>

                    <address id="lrprb"><big id="lrprb"><progress id="lrprb"></progress></big></address>

                      <form id="lrprb"><sub id="lrprb"></sub></form>

                        <track id="lrprb"><sub id="lrprb"></sub></track>

                        <noframes id="lrprb">

                          <thead id="lrprb"></thead><ol id="lrprb"><font id="lrprb"><pre id="lrprb"></pre></font></ol>

                            <track id="lrprb"></track><dfn id="lrprb"><address id="lrprb"></address></dfn>

                              <video id="lrprb"><progress id="lrprb"><nobr id="lrprb"></nobr></progress></video>
                              妓女asianmovies孕妇_爱啪啪av导航_国产高跟黑色丝袜在线_极品丰满国模自慰