摘要:
An apparatus (10) for screeding and smoothing an uncured concrete surface includes a concrete surface working member (20), such as a vibrating beam or member, and a grade setting device (18) adjustably mounted to the vibrating beam (20). The apparatus may include a wheeled support (217) which at least partially supports the vibrating beam (20) and/or the grade setting device (18). The wheels (217b) of the wheeled support (217) may be powered or driven to assist an operator in moving the apparatus over and through the uncured concrete. The grade setting device (18) is vertically adjustable to set or indicate the desired grade of the concrete surface as the screeding apparatus is moved over and through the uncured concrete. The grade setting device (18) may be adjusted by a laser plane responsive control system.
摘要:
A wheeled strike-off apparatus (10) is movable over a surface of uncured concrete or subgrade materials and is operable to establish a desired grade of the uncured concrete surface or subgrade surface. The apparatus includes a wheeled support (12) and a plow assembly (14). The wheeled support may have a front frame portion (212a) and a pair of front wheels (224) rotatably mounted at the front frame portion, and may have a rear frame portion (212b) and a pair of rear wheels (226) rotatably mounted at the rear frame portion. The plow assembly may be adjustably mounted to the front frame portion and may be vertically adjustable relative to the frame portion via an actuator (230). The plow assembly includes at least one plow member (218) for engaging and establishing the desired grade.