Patent ID: 6082074
Filing Date: 2000-07-04
Classification: B28B,B44C,E02D,E04F

Abstract:
A method of fabricating a wall structure having a plurality of layers, the method comprising:a) pouring a first layer of a first concrete mixture into a first substantially vertical form comprising two generally opposing interior walls and having a vertical depth substantially equal to said first layer;b) pouring a second layer of a second concrete mixture on top of the first layer and into a second substantially vertical form situated on top of the first vertical form and having a vertical depth substantially equal to said second layer and comprising two generally opposing interior walls wherein at least a portion of at least one of said walls is not in alignment with at least a portion of a generally vertically adjacent interior wall of the first vertical form;c) sequentially pouring at least one additional layer of at least one additional concrete mixture into a respective at least one additional substantially vertical form situated on top of a next lower vertical form and having a vertical depth substantially equal to said at least one additional layer and comprising two generally opposing interior walls wherein at least a portion of at least one of said walls is not in alignment with at least a portion of a generally vertically adjacent interior wall of the next lower vertical form;d) placing a joint forming material on a top surface of at least one of the layers;e) permitting the concrete mixtures of the respective layers to cure sufficiently to retain respective shapes; andf) removing the forms.