A、透水砼搅拌投料必须严格按配合比进
A. The mixing and feeding of pervious concrete must be in strict accordance with the mix proportion
行，不得错投、误投。次投料必须过磅，随后可在投料机械容器中做记号，按标准参照投料。
All right, no wrong investment or wrong investment. The first feeding must be weighed, and then marks can be made in the feeding mechanical container, according to the standard reference feeding.
B、投料顺序
B. Feeding sequence
本着搅拌机料斗中先投1/2石子，再投水泥、添加剂，然后另投放1/2石子，即保持水泥、添加剂放置在石子中间位置较为适宜。
In order to keep the cement and additives in the middle of the stones, it is more appropriate to put 1 / 2 stones first, then cement and additives, and then another 1 / 2 stones in the hopper of the mixer.
C、搅拌方法
C. Mixing method
先在空机中放用水量的20%，空机搅拌，再提升料斗进料。在搅拌中分多次加水，直到水灰比完成计量。要求搅拌均匀，符合施工要求。合适的用水量搅拌的砼用手能攥成团，手松开后，手表面吸附浆体较少。
First, 20% of the water consumption is discharged into the empty machine, the empty machine is stirred, and then the hopper is lifted to feed. Add water several times in the mixing until the water cement ratio is measured. It is required to mix evenly and meet the construction requirements. The concrete mixed with proper water consumption can be made into a ball by hand. After the hand is released, the surface of watch adsorbs less paste.
D、搅拌时间
D. Mixing time
从投料到出料，一般情况下，350型搅拌机为4分钟。500型强制式搅拌机为3.5分钟。
From feeding to discharging, generally, the 350 type mixer takes 4 minutes. 5 minutes for Model 500 forced mixer.
E、成品料运输
E. Finished material transportation
搅拌好的成品料出机后应及时运到施工现场，10分钟以内运到现场施工为宜。如遇气温高于300C时。混凝土必须采取覆盖保持水份，防止水份蒸发，影响施工质量。透水混凝土施工规程规定，透水混凝土出机工作面运输时间不宜超过30分钟。
The mixed finished materials shall be transported to the construction site in time after being discharged from the machine, and it is appropriate to transport them to the construction site within 10 minutes. If the temperature is higher than 300C. Concrete must be covered to keep moisture and prevent moisture evaporation, which will affect the construction quality. According to the construction regulations of pervious concrete, the transportation time from the machine to the working face should not exceed 30 minutes.
图片
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F、透水混凝土摊铺施工
F. Pervious concrete paving construction
透水混凝土摊铺施工，在结构层施工中应优先确定胀缝位置，规定尺寸、做好标记、按照要求留置、松铺摊平后用低频平板夯夯实，夯实后表面应符合设计高程，以保证面层的施工厚度，要求平整、密实。留置的胀缝应采用聚氨酯类或氯丁橡胶类的回弹性好的柔性材料。
In the construction of pervious concrete paving, priority should be given to determining the position of expansion joint in the construction of structural layer, specifying the size, marking, retaining according to the requirements, and tamping with low-frequency flat plate after loose paving. The surface after tamping should meet the design elevation, so as to ensure the construction thickness of surface layer, which is required to be flat and dense. The retained expansion joints shall be made of flexible materials with good resilience, such as polyurethane or chloroprene rubber.
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2022-12-23
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