Modular concrete form system and method for constructing concrete walls

A form unit for architectural concrete walls, comprising:

• a generally rectangular support frame of multiple parallel base beams normally disposed horizontally;
• a pair of closely spaced backing beams normally disposed vertically and secured to a back of said base beams;
• a backing sheet secured to a front of said base beams;
• a facing sheet overlying and secured to said backing sheet, said facing sheet is a laminate of plywood and a polyethylene plastic sheet, the plastic defining a facing surface having a thickness of about one tenth of an inch;
• a plurality of tie holes extending through said facing sheet;
• a seal tube assembly for positioning between a pair of opposed form units aligned with opposing tie holes;
• and
• a high tensile tie rod for each tie hole
• wherein said facing sheet is beveled around the face thereof.

A form system of modular form units for forming architectural concrete walls, the form system comprising:

• a generally rectangular support frame of multiple parallel base beams normally disposed horizontally;
• a plurality of closely spaced pairs of backing beams normally disposed vertically and secured to a back of said base beams;
• a plurality of backing sheets secured to a front of said base beams;
• a plurality of facing sheets overlying and secured to said backing sheets, each facing sheet is a laminate of plywood and a plastic sheet, and having a facing surface defined by said plastic sheet, the plastic sheet having a thickness of about one tenth of an inch;
• an elastic seal member mounted along a side edge of each modular form unit, the seal member being supported on the backing sheet and disposed at the edge of the facing sheet for sealing between adjacent modular form units for preventing water leakage;
• a plurality of tie holes for each facing sheet positioned between the beams of each of said pairs of backing beams;
• a high tensile tie rod for extending between each aligned pair of tie holes;
• and
• a seal tube assembly comprising an elongated tube and a pair of elastomeric cones for each end of the tube for positioning between a pair of aligned tie holes for sealing the tie rod.

A form system of modular form units for forming architectural concrete walls, the form system comprising:

• a generally rectangular support frame of multiple parallel base beams normally disposed horizontally;
• a plurality of closely spaced pairs of backing beams normally disposed vertically and secured to a back of said base beams;
• a plurality of backing sheets secured to a front of said base beams;
• a plurality of facing sheets overlying and secured to said backing sheets, each facing sheet is a laminate of plywood and a plastic sheet having a facing surface, the plastic sheet having a thickness of about one tenth of an inch;
• an elastic seal member mounted along a side edge of each modular form unit, the seal member being supported on the backing sheet and disposed at the edge of the facing sheet for sealing between adjacent modular form units for preventing water leakage;
• a plurality of tie holes for each facing sheet positioned between the beams of each of said pairs of backing beams;
• a high tensile tie rod for extending between each aligned pair of tie holes;
• and
• a seal tube assembly comprising an elongated tube and a pair of elastomeric cones for each end of the tube for positioning between a pair of aligned tie holes for sealing the tie rod,
• wherein each of said facing sheet has a bevel around the face thereof.