Non-shrink cement grouting material 
 The DMAR GroutTM-618 
 Product Definition: the DMAR GroutTM-618 cement grout material is a cement material, the amount of fine aggregate, concrete admixtures and other materials consisting of dry mixed materials at the construction site by adding a certain amount of water, stir can be used. The grouting material after mixing with water with a high flow state, micro-expansion, segregation, early strength, high-strength performance. 
 : General type, high strength, early strength, ultra-early strength of four kinds. 
 Application areas: 
 Anchor bolt, secondary grouting of equipment based on planted buried reinforced concrete structure reinforcement and repair. 
 Key performance indicators 
 Particle size (4.75mm square mesh sieve I /%) ≤ 2.0 
 Setting time (initial setting min) ≥ 120 
 Bleeding rate (%) ≤ 1.0 
 Initial fluidity (mm): ≥ 260 
 The 30min fluidity to maintain the value (mm) ≥ 230 
 Compressive Strength (Mpa): 1d ≥ 22.0; 3d ≥ 40.0; 28d ≥ 70.0 
 Vertical expansion rate (%): 1d ≥ 0.02 
 Reinforced the bond strength (round bar) / Mpa: 28d: ≥ 4.0 
 : No corrosion of steel reinforcement corrosion 
 Recommended amount of watered: grouting material: water = 100:14-16 (weight ratio) 
 Reference dosage: 2.2 tons / cubic 
 Construction instructions for use 
 1, the construction ambient temperature of 0 ~ 40 ℃, otherwise they should take appropriate measures. 
 Grouting material with water shall comply with the concrete mixing water standard requirements, the water temperature of 5 ~ 30 ℃. 
 , Water should be based on the recommended dosage of this manual, on-site must be strictly measuring containers, the prohibition of arbitrary or visual add water. 
 Field spices mixed with any additives, admixtures, is strictly prohibited. 
 5, pre-construction should be prepared to the mixer with the grouting equipment, templates and maintenance items. 
 6, the mixing of the cement-based grouting material can be mechanical stirring or manual mixing. By mechanical mixing, the mixing time is generally l ~ 2min. Using artificial mixing, add 2/3 of the amount of water mixing 2min, subsequently joined by the remaining amount of water and continue stirring until uniform. 
 Curing 
 After grouting should be immediately sprayed curing agent or covering of plastic film, and stamped with straw bags or rockwool. 
 2, winter construction, conservation measures should also be consistent with the relevant provisions of the existing reinforced concrete construction and acceptance of norms "(GB50204). 
 3, cement-based grouting material removal time for equipment installation. 
 Packing specifications: 25kg / bag