A Hydrophobic Treatment Method for Cracks of Crts II Slab Track Structure
A slab track and water treatment technology, which is applied in track, track laying, track maintenance, etc., can solve problems such as water blocking that have not yet been seen, and achieve the effects of improving water-repellent performance, convenient operation, and ensuring stability and safety
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Embodiment 1
[0071] (1) Observe the two sides of the CRTSII slab track structure with the naked eye, determine and mark the gap of the slab track structure, and the gap refers to the interlayer gap between the track slab and the mortar filling layer;
[0072] (2) Use a strong blower to blow the gap between layers to remove dust and accumulated water on the surface;
[0073] (3) the higher fatty acid-based water repellent that mass concentration is 2% is packed in the container of manual spray pot;
[0074] (4) Aim the nozzle of the spray pot at the gap between layers, squeeze the handle with your hand to spray the water-repellent agent from the nozzle, spray the water-repellent agent longitudinally above the gap between layers, and the side of the track plate is about 10mm high, and fill it with mortar The side of the layer (generally 20-40mm) and the base plate or the top surface of the support layer are close to the base surface and the gap within 10mm of the mortar filling layer, and mo...
Embodiment 2
[0079](1) Observe the CRTSII type slab track structure with the naked eye, determine and mark the gap of the slab track structure, and the gap refers to the gap at the wide and narrow gap between the track slab and the track slab;
[0080] (2) Use a strong blower to blow against the gap to remove dust and water accumulated in the gap and the surrounding base surface;
[0081] (3) Due to the wide gaps at the wide and narrow gaps, it is advisable to use water-based epoxy resin-based water-repellent agent for treatment. Weigh the KH-5 water-based epoxy resin, curing agent, accelerator, etc. in proportion, and put them into a bucket made of plastic or galvanized iron sheet with a volume of about 2-2.5 liters, and mix them well with a mixer or by hand , that is, water-based epoxy resin-based water-repellent agent, usually prepared at a time of 1 to 1.5 liters, with the use.
[0082] (4) Use a soft wool brush with a width of 50-100 mm to absorb the water-repellent epoxy resin-based...
Embodiment 3
[0087] (1) Observe the CRTSII slab track structure with the naked eye, determine and mark the gaps in the slab track structure, and the gaps refer to the gaps on the concrete base plate or support layer;
[0088] (2) Use a strong blower to blow against the gap, remove the dust and water accumulated in the gap and the surrounding base surface, and make it dry;
[0089] (3) Use a soft wool brush with a width of 50-100 mm to absorb the silicone resin-based water repellent, and place the brush on the gap in such a way that the width direction of the brush is parallel to the length of the gap, so that the inside of the brush The water-repellent agent flows into the gap along the gap wall and penetrates into the gap wall.
[0090] (4) Use a portable spray can to spray the water-repellent agent on the surrounding base surface with a width of about 50-100 mm around the gap, and control the spraying speed so that the water-repellent agent forms a layer of liquid with a thickness of 0.5...
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