L-PC is a third generation water reducer. Its comprehensive property indexes are excellent. It is a non-pollution product, so it is a high property and environment–protection product. L-PC is a powder modified polycarboxyl, high efficient water reducer manufactured by spraying dry technology. This powder has very good fluidity and is especially suitable as a dispersing agent to be used in the high property building materials. This water reducer has good dispersing property, high water reducing rate and is suitable with a variety of cements. When it is used in the concretes and the mortars, the fluidity of the blend materials are very good. It also can be used in the engineering of the self-flowing ground, the grouting materials, and so on. Specification Items Specification L-PC-97 (97% Powder) L-PC-40 (40% Liquid) Appearance Light Yellow Powder Pale Brown Viscous Liquid Density(20℃) 500~600kg/m3 1.10±0.02 PH (20℃) 6~8 (20% in water) 6~8 Solid Content(%) 97±1.0 40.0±1.2 Cl-(%) ≤0.01 % ≤0.10 % Na2SO4(%) ≤2.6% ≤4.0% Na2O+0.658K2O(%) ≤5.0% ≤5.0% Solubility Very Soluble Performance Dosages of Cement (wt% of cement) 0.16~0.3% 0.4~0.6% Fluidity of cement paste ≥260mm ≥260mm Water Reducing Rate ≥25% ≥25% Performance Test Test Items Unit Specification Water Reducing Rate % ≥25 Compressive Strength Rate 1d % ≥170 3d ≥160 7d ≥150 28d ≥130 Air Content % ≤6.0 Bleeding Rate % ≤60 Shrinkage Rate(28d) % ≤100 Setting Time Deff. Ini. min -90~+120 Fin. Cl Penetration coulomb ≤2000 F/T Cycles time ≥300 Slump Retention(60min) mm ≥150 Steel corrosion ----- No