ACI RAP-5: Surface Repair Using Form-and-Pump Techniques

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ACI RAP-5: Surface Repair Using Form-and-Pump Techniques

Author(s)/Editor(s): ACI Committee E706 | Size: 1.37 MB| Format: PDF| Quality: Original preprint| Year: 2011

FIELD GUIDE TO CONCRETE REPAIR APPLICATION PROCEDURES

Surface Repair Using Form-and- Pump Techniques

The form-and-pump repair technique is a multi-step process of preparing and constructing formwork, and pumping repair material into the cavity confined by formwork and existing concrete. The form-and-pump technique allows the use of

many different repair materials. The necessary requirement for material selection is pumpability. Various pumps are used, depending on the mixture design with focus on aggregate size. Prior to construction of formwork, any surfaces that may

cause air to become trapped during the pumping process must be trimmed, or vent tubes installed.

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