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河北贝卡纤维制造有限公司
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当前位置:钢纤维路面的施工注意事项
钢纤维路面的施工注意事项
[来源:http://www.gangxianwei51.com] [作者:aowl] [日期:18-05-24] [浏览次数:]
1、采用强制式搅拌机。混凝土搅拌机使用双锥反转出料搅拌机,容量为250L由于采用1.2%的掺量,且坍落度较小,为不使搅拌机超负荷工作,适当降低搅拌机的利用率。 1. A forced mixer is used. The concrete mixer uses a double cone reversing mixer. The capacity of the mixer is 250L, because the mixing amount is 1.2%, and the slump is small, so that the mixer is not overloaded and the utilization rate of the mixer is reduced properly. 2、运输。运输采用自卸运输车。由于在运输过程中受到振动,使钢纤维下沉,坍落度和含气量都会有损失,影响混凝土的均匀性。因此,选择搅拌场地时尽量缩短运输距离,并注意选择合适的自卸运输车辆,以保证浇筑时的卸料高度不得超过1.5m,确保混凝土卸料过程中不发生离析现象。同时,宜注意运输时的温度,避免造成混凝土的施工和易性下降。 2. Transportation. Transportation adopts dump truck. Due to vibration during transportation, steel fiber sinks, slump and gas content will be lost, which will affect the uniformity of concrete. Therefore, when the mixing site is chosen, the transportation distance is shortened as far as possible, and the proper unloading vehicle is selected to ensure that the unloading height of the pouring is not more than 1.5m, and the segregation phenomenon does not occur during the concrete unloading process. At the same time, attention should be paid to the temperature at the time of transportation, so as to avoid the decrease in the workability and workability of concrete. 3、抹面、压纹。将外露的压入混凝土中,同时在抹平的表面采用滚式压纹机沿路线横断面方向压纹l-2mm。切缝与养护。当养生强度达到设计强度约50%时,用切割机切缝,缝深3cm,缩缝设置为5m/道,与旧缝对齐。并保持施工缝与胀缝或缩缝设计位置吻合,施工缝与路中线垂直,不设置传力杆。对胀缝、缩缝均采用l0号石油沥青填缝。混凝土路面采用洒水养生,终凝后用麻袋覆盖,每天洒水养护,保持混凝土呈潮湿状态。养生时间在l0~15d。待混凝土测试强度达到规定的强度再开放交通。 3, plastering and pressing. The exposed concrete is pressed into the concrete and the roller embossing machine is used to emit l-2mm along the cross section of the route. Cutting and curing. When the health intensity reaches about 50% of the design intensity, cut the seam with the cutting machine, sew 3cm deep, and sew the gap into 5m/ way, aligned with the old seam. Moreover, the construction joints are consistent with the design positions of expansion joints or contraction joints, and the construction joints are perpendicular to the middle line of the road, and no transfer rod is set. The expansion joints and shrinkage joints are filled with l0 asphalt. The concrete pavement is sprinkled with water, then it is covered with gunny bags and sprinkled and maintained every day to keep the concrete moist. The health time is from l0 to 15d. When the concrete strength reaches the required strength, the traffic will be opened again. 4、设置分散装置。由于一次性直接投入搅拌机易出现结团现象,为使它充分分散,在搅拌机上安装上振动式分散机,分散机功率为1.0kW,分散能力约为40kg/min。由于分散机安装在搅拌机上,分散时间较长,增加了搅拌时间,生产效率有所降低。 4. Set up the dispersing device. In order to fully disperse the mixer, a vibrating dispersing machine is installed on the mixer, the power of the dispersing machine is 1.0kW and the dispersing capacity is about 40kg/min. Because the disperser is installed on the mixer, the dispersing time is longer, the mixing time is increased, and the production efficiency is reduced.

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