Answer: Actually, no! Because the cost of waterproofing work only accounts for 1% of the overall construction cost! In Taipei City, the current mainstream sales area size is 40 square meters, and the price of such an area can easily reach 4-5 million NTD.
A: 1. This question is the biggest shortcoming in the minds of people who have been engaged in professional waterproofing engineering for a long time! In China, there are no complete professional textbooks on waterproofing in undergraduate civil engineering departments.
A: (i) Currently, all multi-story residential buildings in China have a foundation-based rainwater collection system; therefore, if there is severe leakage anywhere in the basement, the water can be drained through a drainage system.
A: In order to achieve the dual function of drainage for the basement walls while not affecting the space for flat parking, a drainage board with diamond-shaped mesh is laid on the wall, and the surface is then painted and plastered. This is a common practice in urban areas.
Answer: (i) The leakage type can be divided into (ii) Prevention methods:
Answer: (i) Waterproofing of continuous walls has significant differences in basic design and construction concepts, both domestically and internationally. In foreign countries, defining continuous walls as a hypothetical project for retaining walls inherently falls under the category of
Answer: It can be divided into: Standard normative construction drawings for the outer waterproof layer construction method: Standard normative construction drawings for the outer waterproof layer construction method:
A: It is advisable to use water-based and solid-state waterproofing coating materials. In planning the construction, the following points should be taken into consideration:
Answer: (i) The most common areas prone to water leakage in flower beds are: (1) the corners of the installation and grouting work where the roots of the plants are located or where the grout is applied in stages; (2) around the water outlets. (ii) The following situations apply:
A: If you want to prevent future problems from occurring through external leakage repairs, there are only two situations where the success rate is higher: As for the leakage caused by the corner and corner construction seams, which occur most often, because these seams are the entire structure.
A: Generally, if the ceiling of the elevator room in the top floor of a residential building experiences a leak, because the water storage tank is located above it, the first thought is that it is probably caused by a water tank leak; however, it must be noted that the water tank is located in the basement of the building.
A: According to the waterproofing standards of the Japan National Association of Architects JASS No. 8, it is recommended to use water-based and solid-state waterproofing materials (categorized into acrylic resin series and EVA).
Answer: (i) In the process of waterproofing the tank, the most common mistake made on construction sites is to first paint the base and then apply the waterproofing coating. The reason is that since tanks are generally prone to leakage, it is necessary to first seal the base before applying the coating.
Answer: The key lies in the structure of the tank; as in question 83, ninety percent of the water leakage is due to four major defects in the structure; if these defects are properly addressed, a simple 1:2 countermeasure can be applied.
Answer: (i) The common areas prone to water leakage in reservoirs are: (ii) Construction methods include U-shaped and M-shaped structures. The U-shaped construction method is because the bottom and the wall are integrated into one unit.
Answer: (i) If PU construction is adopted, the waterproof performance of the RC wall remains acceptable; the only drawback is that it cannot be painted or primed; however, for the brickwork part, it is very difficult to completely seal the surface.
A: (i) According to the waterproofing standards of the Japan National Association of Architects’ JASS 8, it is recommended to use a water-based composite waterproofing material (also known as the “elastic” waterproofing material commonly used in the market).
Answer: (1) The function next—since it is difficult to achieve complete dryness on the bathroom walls, it is best to use water-based waterproofing materials. (2) Weatherproof function—since the bathroom surface is exposed to the elements, it is necessary to use a waterproof material that can withstand the elements.
Answer: (i) The water in the bathroom is heavy, while the water outside the bathroom is light. The water in the bathroom is acidic because it combines with the carbon dioxide and carbon monoxide in the air to form acidic water. These acids
Answer: (i) Longitudinal leakage (water leaking from the upper floor to the lower floor): (1) Water leakage from the lower floor caused by cracks in the bathroom floor or defects in the floor structure. (2) Due to drainage pipes
Answer: (i) Although this method of construction has the advantages of being quick and low-polluting, the actual results have the following blind spots: (1) The construction workers must possess proficient skills and wisdom;
A: The phenomenon of water leakage caused by poor installation of window frames is the top priority for the after-sales service departments of major construction companies in China. Their repair frequency is high. Their repair techniques for fixing leaks mainly include:
Answer: (i) Using water-based cured asphalt paint to waterproof window frames: experience shows that this black waterproof adhesive (which is labeled as "water-based PU" on the market but is actually not)
Answer: Currently, the emergency grout sold by building materials stores is mainly used for basement leak detection projects. If it is used to fill large gaps in door and window frames, the following side effects will occur: (1) This
A: This is a common situation in construction sites. Many site managers lack basic knowledge of waterproofing, which is one of the main reasons why water seeps everywhere from the walls near the window frames. Generally speaking