Case Study Information
Project Type: Channel Lining and Slope Protection
Project Type (Other): Mining
Project Start Date: October 2025
Project Objective:
The objective of this project is to address or re-cover slopes exposed due to the collapse of the shotcrete lining in the haul road area.
Project Location: Kaliorang, East Kalimantan
Contractor: External Contractor
Number of Installers: 7 people
Client/Project Owner: Coal Mining Company in East Kalimantan
Consultant (if any): —
Amount of Concrete Canvas Used: 2,375 m²
Roll Format: Bulk Roll
Type / Thickness: CCX-M
Installation Method (Layup): Vertical
Dimensions (if known):
Installation Process
Equipment used
- Spreader beams
- Excavator
- Cutter/utility knife
- J-Pin 40 cm
- 30 mm stainless steel screws
Alternatives and Reasons for Choosing Concrete Canvas
Shotcrete was considered because it was previously used on existing slopes. However, after about two years, the shotcrete layer cracked in several areas, causing the concrete to crumble and reducing the effectiveness of the slope protection. Therefore, Concrete Canvas was chosen as an alternative due to its flexibility, ability to follow the contours of undulating slopes, and quick installation without complex equipment. Furthermore, the Concrete Canvas installation method does not require road closures, making it ideal for slopes located near operating hauling roads.
Environmental Conditions
The project was carried out in a hauling road area with a slope height of up to 30m.
Land Preparation
- Cleaning cracked shotcrete layers
- Releveling the land contour
Installation, Bonding, and Sealing Methods
Concrete Canvas CCX-M is installed vertically with overlap joints. Fastening is done using 30 mm stainless steel screws spaced 10 cm apart on each overlap. Additionally, 40 cm J-Pins are installed every 3 m along the slope.
Hydration Method
The hydration process is carried out using a hose connected to a water pump, with the water source coming from a nearby pond around the project site.
Installation Duration
Installation productivity reaches around 400–500 m² of Concrete Canvas per day.
Project Success
The project was deemed successful, due to its rapid installation and the absence of disruption to mining operations on the hauling road.
