Product Keystone Retaining Wall System

Keystone Retaining Wall System

Retaining Excellence™

In today's world of imitation products, KEYSTONE® Retaining Wall Systems continues to set the worldwide benchmark for segmental retaining wall performance and aesthetics, from soil retention and erosion control to landscape systems in over 35 countries.

As the industry's leader, KEYSTONE® has set the bar for excellence, innovation and technology within the industry, being a product of the energy, passion and focus of the people dedicated to ensure that KEYSTONE® products and services offer the best site solutions for residential, commercial, recreational, industrial and institutional applications.

KEYSTONE® created the mortarless segmental retaining wall market with its patented interlocking modular design nearly two decades ago, and still retains that distinct difference of out beauty and inner strength - the beauty of natural stone, the durability of granite and positive unit connection internally.

The high-strength KEYSTONE® concrete units and patented interlocking pin system ensures a conveniently easy positive connection between KEYSTONE® units, as well as between the KEYSTONE® units and soil reinforcement elements. Additionally, KEYSTONE® patented pins aid in horizontal alogment, while also providing the ability to vary the wall set-back, a feature unique to KEYSTONE®.

Product reference standards: MS 27 : 1996, BS 6073 : 1981, ASTM C 1372-97, ASTM C 90-75, ASTM C 140-75
Additional information, products and services available on request

Technical Brochure
Keywall Design Software
Keywall Design Manual and Operating Guide
KEYSTONE® Specifications
Geogrid Specifications
Segmental Retaining Wall (SRW) Specification
Specialist Tools and Handling Equipment
Method Statement
Preliminary Design Assistance
Installation Guidelines
Contractors' Installation Training Programme
Construction Detail

Attributes

KEYSTONE® Retaining Wall modular units are dry-cst from high strength low absorption concrete for durable long-lasting structures.

All structural units are interconnected using high-strength fiberglass pins for strong shear connection. The connecting pins allow for ease of unit alignment and a secure positive mechanical connection with soil reinforcement.

KEYSTONE®'s patented in system is the critical difference providing the safety and security of a structurally sound retaining wall solution.

Key Features

High Strength Pin Connection System
Open Cores
- Increases vertical drainage through the face units
- Allows for block interlock across block interfaces
- Improves connection strength between blocks and geogrid
- Improves unit-to-unit shear resistance
Versatility
- Multiple fascia and texture options
- "Near" vertical or battered set-back options are built-in
Shape
- Tapered sides allow easy curves, corners and circles
- Units have a "tail" element for easy handling

Size (H x W x D)	8" x 18" x 21½" (±0.203 x 0.457 x 0.546m)
Exposed Face Area	1 ft²/pc : 8" x 18" (0.093 m²/pc )
Unit Weight	±42.8 kg *

Size (H x W x D)	8" x 18" x 12½" (±0.203 x 0.457 x 0.305m)
Exposed Face Area	1 ft²/pc : 8" x 18" (0.093 m²/pc )
Unit Weight	±38.5 kg *

Size (H x W x D)	4" x 18" x 10½" (±0.102 x 0.457 x 0.267m)
Exposed Face Area	½ ft²/pc : 4" x 18" (0.046 m²/pc )
Unit Weight	±20.2 kg. *

Size (H x W x D)	½" Ø x 5¼" (±0.012 Ø x 0.133m)
Flexural Strength	Min 128,000 psi (±883 MPa)
Short Beam Shear Strength	Min 6,400 psi (±44 MPa)