Performing renovations according to a long-term repair plan is important for maintaining the value and durability of an apartment building. However, it is important to have a sufficient reserve fund for this work.
Thoroughly clean the concrete surfaces before placing repair material. Ensure surface-dried (SDD) condition by high-pressure water blasting or other approved methods. Mix the concrete using a mortar mixer to ensure the water-to-cement ratio is within manufacturer limits.
Cost
Major repair work is expensive and requires a lot of professional expertise. This may include extensive electrical, plumbing or engineering work. It also includes repairing safety hazards and renovations to the building structure and roof. These types of repairs can cost a considerable amount of money and may be subject to permit requirements or inspections throughout the renovation process. Apartment owners must pay into a reserve fund to cover the cost of these 大規模修繕.
Due to their high costs, LSRW cannot be performed simultaneously for all deteriorated pavements; hence, they are carried out based on urgency. To prevent damage to the surrounding pavement, contractors must sound the concrete and use power-driven chipping tools to remove concrete while avoiding damaging the remaining sound concrete.
Time
In general, large-scale repair work is time-consuming and costly. Therefore, it cannot be performed simultaneously for all deteriorated pavements; they are carried out based on urgency. A common method for assessing the urgency of maintenance is the MTTR (Mean Time to Repair). Generally, a number of delays are included in this calculation, such as the time for identification, notification, acknowledgment and diagnosis of equipment failures. These delays often lead to unproductive downtime. The MTTR can be reduced by speeding reporting, centralising and organising information and investing in equipment maintenance.
Environmental Impact
During 大規模修繕工事, any potential impact on the environment should be considered. This includes impacts on air quality, water quality, wildlife habitats, and the human environment. It can also include other factors such as waste, noise, vibrations, and soil and groundwater contamination. Ideally, an environmental impact assessment (EIA) should be performed before any project begins to identify and reduce the negative impacts of a project on the environment.
EIAs are a requirement for most major Federal projects that affect the environment. They include detailed studies of environmental impacts, measures to mitigate those effects, maps and technical details of the project area, and alternatives to the proposed project. The EIA process is designed to provide the public with an opportunity to comment on the project.
Mass transit operations can have a variety of environmental issues, including air pollution and greenhouse gases, water discharges, waste removal from passengers, harmful materials, and contaminated soil and groundwater. To help manage these environmental impacts, agencies can implement a number of strategies, such as emissions inventories, risk assessments, and process hazard analysis. Taking these steps can help to reduce pollution levels, conserve natural resources, and save money on energy costs and liability. They can also improve the quality of life for those living in apartment buildings.
Safety
It is important to take the right safety measures when conducting large scale repair work. The team conducting the repair should be properly trained and equipped with proper tools. They should also be aware of the environment where they are working and avoid any hazards that could affect the safety of the people around them. For example, the team should use sounding to determine the boundary of the repair area and ensure that no damage is done to the existing sound concrete.
