1) 路肩石、中央分隔带护栏采用统一规格、集中预制。
1) Shoulder stones and guardrails with central partition belts shall be made of uniform specifications and centralized prefabrication.
2) 路肩石下垫层要采用无砂混凝土垫层。
2) Sand-free concrete cushion should be used for the underlying cushion of shoulder stone.
3) 应轻拿轻放，避免损坏。强度不合格、掉边（角）、蜂窝、麻面、颜色不一致的不得使用。
3) Should be handled lightly to avoid damage. Those with unqualified strength, edge drop (corner), honeycomb, hemp surface and inconsistent color shall not be used.
4) 中央分隔带护栏的安装采用“预安装”方法，经监理验证后再进行正式安装。
4) The installation of central partition with guardrail adopts "pre-installation" method, which is verified by supervision before formal installation.