Simply craned into position EZ-Pac brings added speed, simplicity and efficiency to the construction of any size radiation shielded structure. Individual MarShield modules are assembled into stackable packs to form a standard EZ-Pac unit. Grout materials will have a lesser compressive strength as water content is increased for working properties, but shall not be less than 2,800 psi when mixed on site. This product routinely easily surpasses this minimum and is typically on the order of 5,200 psi. Block are also available in half thicknesses, with a nominal thickness of 2.5 inches (63 mm).Ĭompressive strength is guaranteed to meet 2,800 psi. Standard MarShield blocks are 5” x 5” x 10” (127 x 127 x 254mm). Easy to transport and store on worksite, unaffected by weather.Little to no steel reinforcement and no formwork.Blocks are environmentally safe to handle and use with no disposal concerns as material is non toxic.Construction is not labor intensive, design is flexible, and does not omit hazardous dust emissions during installation.MarShield offers smaller sizes for lighter weight and easier handling.Easy and quick to, install, remove, and re-install if necessary.MarShield construction requires half the space of mass concrete vaults. Available in four densities – 150, 220, 250 and 300 lbs./cu.ft. Unique sine-wave shapes eliminate straight line seams and provides superior neutron, photon and particle attenuation at the joints. MarShield’s system of dry stacked shielding modules which interlock to form a tight, leak-free therapy room of any size or shape.