Cement based cross-ply laminates

A filament winding system was developed for manufacturing cross-ply cement based composites using continuous fibers. The computer-controlled system is used for manufacturing composite laminates, pipes, and pultruded sections. The electrical and mechanical components of the system are discussed in detail. Composite laminates are manufactured using continuous glass and polypropylene fibers. Their mechanical response is measured using closed loop uniaxial tensile and flexural tests. Results indicate that tensile strength of composites can exceed 50 MPa using 5% alkali-resistant glass fibers. By varying the stacking sequences, the ultimate strain capacity can be increased to more than 2% for glass fiber composites and 8% using polypropylene composites. The software/hardware system may be easily adapted for design and manufacturing of full-scale cement based composite laminate systems.