Construction Process Introduction

Engineering ledger. Introduction to general pool anti-corrosion engineering, . Coating surface: glass‑epoxy steel, i.e., three layers of fabric and five layers of oil. Anti-corrosion Engineering The specific construction process is divided into the following steps:

1. Preparations:

Ensure the cement floor is completely dry before proceeding with construction. The cement strength has reached more than 80% of the design strength. Foundation leveling Each: The dimensional error is within 1–1.5 mm. ， The surface shall be kept clean and dry, Only then can the base coat application proceed. ， Avoid construction during the hottest part of the day. 。

② Prepare the fiberglass raw materials and construction equipment required for the project. ， In addition, implement basic fire‑prevention measures, ensure that personal protective equipment and safety precautions are in place, prepare a construction plan, and conduct technical and safety briefings for all workers to ensure safe and civilized construction practices.

③ Conduct incoming inspection of equipment to check for damage and other safety hazards; sort materials and stack them by category in designated areas, clearly marking each pile to ensure they remain dry and uncontaminated. Have qualified laboratory personnel perform testing and verification on the materials, record the relevant data, and retain the results for use during construction.

2, The specific construction procedure is as follows: ( Three layers of cloth and five layers of oil ):

1. Applying the epoxy coating: Begin with the first coat by carefully applying it to corners and other hard-to-reach areas, ensuring uniformity throughout. Then proceed to coat the remaining surfaces, overlapping each pass by approximately 30–50 mm. After the first coat has cured, repeat the process for a second application, paying particular attention to corners and other challenging areas.

2. Inspect the coated surface for burrs that require sanding, as well as for any areas with incomplete coating or insufficient coating thickness, among other potential issues. Only after passing inspection may the next construction step proceed. Following acceptance, apply the fiberglass cloth, ensuring it is firmly bonded in layers; never apply two or more layers simultaneously.

The joints of the fiberglass shall be staggered, and the lap at the seams shall be no less than 50 mm.

3. After the fiberglass has cured, inspect for common defects such as blistering, resin bleeding and whitening, or delamination, as well as any hidden issues. If any non‑conformities are found, a corrective action plan must be developed by qualified technical personnel; unauthorized modifications by the construction team are strictly prohibited. For the aforementioned defects or other unforeseen problems arising from causes not attributable to the contractor, resolve them in accordance with the contract terms if such provisions exist; otherwise, seek resolution through mutual consultation with the client. Upon successful inspection, apply the final coat of epoxy sealant, following the same procedure as the first coat.

    4 , Finished Product Protection: Throughout the aforementioned process, a specified curing period is required (the exact duration to be determined by the construction plan and schedule). During this curing phase, the work must be protected by erecting perimeter barriers and warning signs; if necessary, dedicated personnel may be assigned for on-site supervision.

Number of Participants Plan

1. It shall be determined in accordance with the contractually agreed construction period and the specific scale of the project.

2. At least one safety officer and at least one laboratory technician are required.

Quality Requirements

1. According to the construction plan and the site conditions On-site situation Situation Ensure that construction work at each stage is carried out properly, Perform self-inspection, Mutual inspection and Special Inspector Special inspection to meet quality requirements.

2. No item may proceed to the next process without inspection, and critical control items must achieve 100% compliance.

Safety measures

1. Since the raw materials used in construction are flammable, A dedicated warehouse must be established, staffed by a designated custodian and equipped with fire‑fighting facilities. All construction personnel entering the site are prohibited from smoking, and open flames are strictly forbidden.

2. Construction personnel enter the site. Real-name registration is mandatory, and personal protective equipment must be worn properly. Comply with all rules and regulations and follow the supervisor’s instructions.

3. During the application of porcelain glaze, a ventilation fan must be installed on site to supply fresh air and maintain good air quality inside the tank. , or wear a gas mask to facilitate better construction work. ， A dedicated supervisor must be present to oversee the operation, and appropriate emergency equipment and an emergency response plan must be in place. 。

Completion Acceptance

Engineering Corrosion Protection Upon completion of all construction works, after the workers have conducted a self‑inspection and confirmed compliance, the work shall be submitted to qualified professionals for inspection, and any issues identified during such inspection shall be rectified and addressed. After passing inspection by qualified professionals, a completion acceptance application shall be submitted, and Party A shall conduct the acceptance. Upon successful acceptance, an acceptance report and relevant documentation, including details such as the area treated for corrosion protection, shall be provided to request payment from Party A.

Quality period and warranty period

The warranty period for quality is one year. During this period, if any defects arise that are attributable to the quality of the work itself, the contractor shall undertake repairs without condition, with all associated costs borne by the contractor. Upon expiration of the warranty period, if Party A does not raise any objections within one week following such expiration, it shall be deemed that Party A has accepted the conclusion of the warranty period, and Party A shall promptly pay the contractor the corresponding retention money. The duration of the warranty period shall be determined by the contract; in the absence of such agreement, it shall be governed by national standards; if no national standards exist, industry standards shall apply; and if no industry standards are available, enterprise‑specific standards shall prevail. Should defects emerge during the post‑warranty period while the quality‑assurance period remains in effect, Party A shall have the right to require the contractor to address them, and the contractor may not refuse; all related costs shall be borne by Party A.