Papercrete is also a structural material that can either be made into blocks for wall construction or poured into forms. Although patented back in 1928, it fell into disuse until around 1990 when Eric Patterson of New Mexico and Mike McCain of Colorado began experimenting independently. Papercrete makes excellent use of waste paper, simply by pulping it and mixing it with water and cement. Because it absorbs water (but without expanding) it is probably most suited to dry regions, but it is an example of imaginative use of local and waste materials (Solberg, 2002). A related material is fidobeshort for fibrous adobemade by using adobe dirt in the slurry instead of cement. Fidobe weighs less than adobe, has much more