Disclosed are dual-phase cement precursor systems and related methods andkits. The cement precursor systems are composed of a first and second discretephases, at least one of which is aqueous. When combined, the cement precursorphases form a cement that is suitable as a bone graft material for bone repairprocedures. In preferred embodiments, the materials are highly biocompatible,osteoinductive, and bioresorbable. A number of different but not mutuallyexclusive cement chemistries may be employed in the cement precursor systems.For instance, hydrogel-forming polymer cements, carboxyl/calcium cements, orcalcium phosphate cements may be employed.
