Abstract: The research was carried from the strength law of the water cement ratio law of cement base material: the ratio of the strength is equal to the water cement ratio of cement base material.The relation between the recycled powder mortar strength and cement dosage and curing age were experimentally established, on which cement and the diy curing agent LQ1 and LQ2 content were respectively researched in the recycled powder mortar.And the relation functions are got to describe the relationships.Then random experiments were adopted to inspect and correct relation validation curing agent LQ1, LQ2 solidified mortar.As a result, the effective prediction models of the recycled powder mortar strength increasing by LQ1, LQ2 cured are got.

Key words: compressive strength;strength growth model;cement;curing agent