[Road, bridge, track slab, concrete pavement repair mortar 】Construction technology
1、 Base treatment: one Clean the defects on the surface of the concrete prefabricated parts, remove the deteriorated concrete such as spalling, looseness, honeycomb and corrosion, and wash it with clean water. two For pavement, bridge deck and parking lot, the defective surface can be cut and chiseled to the specified geometric size and high level according to the construction design requirements before surface cleaning.
2、 Material preparation:（ one ） Inject clean water into the mixing equipment according to the water consumption recommended by the manufacturer, and then add mortar powder to mix evenly;
（ two ） After mortar mixing twenty Minutes (at twenty ℃), so the amount of mixing at one time should not be too much, and the mixing place should not be too many, and the mixing place should be as close to the repair place as possible:
（ three ） After each mixing, flush the mixing equipment with water to avoid mortar bonding and gathering on the equipment;
（ four ） Do not add water to mix the mortar after mixing.
4. Clean and hard base shall be removed, and dry mortar shall be mixed according to the proportion recommended by the manufacturer, without adding water. After mixing into uniform slurry, it can be plastered and compacted on the basis of repair. After surface leveling and initial setting, the surface shall be pressed for curing.
3、 Repair construction: one Use a spatula to press and plaster the mortar onto the repair surface. Generally, the thickness of the repair layer shall not exceed 50mm , not more than 10mm The construction of the upper layer shall be carried out after the surface is dry. two After construction, wet curing shall be carried out for exposed mortar surface.
