Case Study Information
Project Type: Irrigation Canal Repair
Project Type (other): Government
Project Start Date: January 12, 2026
Project Objective:
The objective of this canal repair project is to restore the function of a damaged stone masonry canal. Concrete canvas is installed directly over the existing canal to seal the damage and prevent leaks, allowing water to flow smoothly again. This repair ensures the canal can function effectively for irrigation of surrounding plantations and rice fields.
Project Location: Gorontalo Regency, Gorontalo
Contractor: PT Brantas Abipraya
Client/Project Owner: BWS Sulawesi II Gorontalo
Number of Concrete Canvas Used: 5320 M2
Roll Format: Bulk Roll
Type / Thickness: CCX-M
Installation Method (Layup): Transverse
Dimensions (if known): 7 Meters
Installation Process
Equipment used
- Cutter/utility knife
- Drilling machine
- Dynabolt M10 x 50
- 20 mm stainless steel screws
Alternatives and Reasons for Choosing Concrete Canvas
The reason for using concrete canvas is its ease and speed of installation. This material allows channel repairs to be carried out without having to close the sluice gates for extended periods, thus maintaining irrigation flow and not disrupting the irrigation of surrounding rice fields.
Environmental Conditions
The project's environment is located in a rice field and plantation area, where canals play a crucial role in irrigation. The existence of well-functioning canals is vital to ensuring smooth water distribution to agricultural land, supporting crop productivity, and maintaining the sustainability of agricultural activities in the surrounding area.
Land Preparation
- Drainage of the channel
- Sedimentation removal
- Surface leveling of the channel
Installation, Bonding, and Sealing Methods
The concrete canvas installation process begins with drying, cleaning, and leveling the existing channel surface. Afterward, the concrete canvas is laid transversely across the channel. Each overlap joint is secured with 20 mm stainless steel screws, then anchored with M10 × 50 mm dynabolts. Dynabolts are installed at each overlap joint on the left and right shoulders of the channel to ensure a secure bond and stability during water flow.
Hydration Method
The concrete canvas hydration process involves irrigating the installed segments with water from the channel itself. Next, the shoulders and sides of the channel are manually watered to ensure the entire surface of the concrete canvas is evenly hydrated. This method utilizes available on-site water sources and ensures the material hardens sufficiently to withstand water flow.
Installation Duration
Installation productivity is approximately 285–380 m² of Concrete Canvas per day
Project Success
This irrigation channel improvement project was deemed highly successful and received praise from the owner. Furthermore, the provincial government, through the Department of Agriculture, also presented an award for the project's significant positive impact on agricultural activities and the sustainability of irrigation in the surrounding rice fields and plantations.
"The use of concrete canvas to repair this irrigation channel was very helpful. The installation process was quick and efficient, allowing the channel to function again without disrupting agricultural irrigation. We greatly appreciate this solution because the impact is immediately felt by the community and agricultural productivity is maintained."
Dendi Tri Kusumah Darga - Project Manager
