Patent ID: 9284226
Filing Date: 2016-03-15
CPC Classification: C04B

Claim Text:
1. A gunite forming composition consisting of: (a) a dry cement component which consists of (i) a nucleation agent accelerant, (ii) a calcium sulphate source selected from the group consisting of beta anhydrite, gypsum and hemi-hydrate, and (iii) from 30% by weight of calcium sulphoaluminate as an ettringite forming cement, and (b) an aggregate, wherein the weight ratio of the aggregate (b) to the cement component (a) is from about 2:1 to about 6:1, and wherein when the composition is mixed with water, the resulting mixture has undergone final set and hardened sufficiently to possess a minimum unconfined compressive strength of 1500 psi when tested in accordance with ASTM C1140 and/or C1604 at 15 minutes after placement.