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                當前位置:剪切型鋼纖維的主要性能
                剪切型鋼纖維的主要性能
                [來源:http://www.www.tjejtrampet.com] [作者:不詳] [日期:21-10-12] [瀏覽次數:]

                剪切型鋼纖維的主要性能 The main properties of shear type steel fiber 1、抗拉強度 1. Tensile strength 為使鋼纖維混凝土具有良好的力學性能,要求鋼纖維具有一定的抗拉強度。鋼纖維的抗拉強度,根據鋼纖維的材質和生產工藝不同,其抗拉強度也有所區別。剪切型鋼纖維的抗拉強度一般為380~800MPa。 In order to make steel fiber reinforced concrete have good mechanical properties, steel fiber must have certain tensile strength. The tensile strength of steel fiber varies according to the material and production technology of steel fiber. The tensile strength of shear steel fiber is generally 380~800MPa. 2、粘結強度 2. Bond strength 鋼纖維的粘結強度,可按《鋼纖維混凝土試驗方法標準》(CECS13:89)用直接拉拔法測定鋼纖維與水泥砂漿之間的粘結強度。 The bond strength of steel fiber can be measured by the direct drawing method of steel fiber concrete test method (CECS13:89). 由于鋼纖維混凝土的破壞主要是鋼纖維的拔出而不是拉斷,因此鋼纖維的增強主要取決于鋼纖維混凝土基體界面的粘結強度。提高粘結強度除與基體的性能有關外,就鋼纖維本身來說,應該從鋼纖維的表面和形狀來改善它與基體的粘結性能。為了提高鋼纖維的粘結強度,常采用:使鋼纖維表面粗糙化、截面呈不規則形,增加與基體的接觸面積和摩擦力;將鋼纖維表面壓痕,或壓成波形,增加機械粘結力;使鋼纖維的兩鋼制閘門 鋼壩 保定輕鋼別墅 保定平面設計培訓 保定室內設計培訓 保定辦公家具 保定空調維修 端異形化,將兩端制成彎鉤或大頭形等,以提高其錨固力和抗拔力。 Because the damage of steel fiber concrete is mainly the pulling out of steel fiber, not breaking, the reinforcement of steel fiber mainly depends on the bond strength of the interface of the steel fiber reinforced concrete matrix. In addition to the improvement of the bond strength, the bond properties of the steel fiber should be improved from the surface and shape of the steel fiber, as far as the properties of the matrix are concerned. In order to improve the bond strength of steel fiber, it is often used to make the surface of the steel fiber rough, the cross section is irregular, the contact area and the friction force of the steel fiber are increased, the surface of the steel fiber is indentation, or pressure is pressed into the wave form, and the mechanical bonding force is increased; the two ends of the steel fiber are specialized, and the two ends are made of crooked hook or large head shape. High anchorage and pulling resistance. 試驗表明,異形鋼纖維比平直形鋼纖維的增強效果可提高約一倍。 The experiment shows that the reinforcing effect of profiled steel fiber can be approximately doubled than that of plain steel fiber.

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