Description

RG-N Track daub  Application • Container terminal、Port platen grouting • Equipment installation of secondary grouting • Installation of anchor bolts for anchoring a variety of devices • The engineer of bridges, roads, tunnels • Civil engineering structures crack pouring and reinforcement  Characteristics • Early strength and high strengthï&frac*4;šAfter pouring over 1D strength up to *0MPa • Durable high-strengthï&frac*4;šno concern later the decrease of the strength • Gravitational flowï&frac*4;šTo ensure no leakage empty gravity grouting mortar • Minimum inflationï&frac*4;šContraction of the castings to ensure long-term safe operation of equipment • Effective areaï&frac*4;šUp to *6% of the effective contact area  Usage In proportion with clean tap water can be stirred into a gravity state to construction  Storage *5g / bag paper plastic packagingï&frac*4;šdry and Ventilation may be stored for 3 monthsï&frac*4;ˆSpecial packaging and storage may be extended to 1 yearï&frac*4;‰ Construction Instructions of RG-N Track daub  Construction preparation  Foundation Concrete and the lower surface of binder plate smallest spacing of not less than *0mm  Before the constructionï&frac*4;Œmixersï&frac*4;Œtemplates and maintenance supplies must be ready.  Before groutingï&frac*4;Œthe concrete surface must be chiseling and cleaned up to ensure grout surface free from gravel, floating cement, dust and grease, etc. Clean up the rust and grease on the binder plate with cotton yarn. *4 hours before the grouting, the surface of base concrete must be full moist. And drain the water 1 hour before the grouting.  After been cleaned, the concrete base shall have templates installed around it. Templates must be fixed firmly to ensure no gap. All the gaps must be sealed (especially for those between the templates and concrete), to avoid leakage of groutï&frac*4;›the top level of the template should be *0 mm higher above the upper surface of the base of the equipment.  Mixing  RG-N Track daub is uniformly premixedï&frac*4;Œonly need to add Meet the standards for drinking of water mixing in construction. Add water in accordance with the recommended volume of RONGDA: ****5% and stir even to a state of flow under gravity, and then can be used in grouting.  The mixing of RG-N Track daub must adopt mechanical agitation .There are two mixing ways: 1. Mortar Mixer: before mixing, add water of 2/3 of total volume and stir for 3 minutes, and then add the remaining volume and stir even. Mixing time must be more than 5 minutes. In the process of mixing by the mortar mixer, a large number of air bubbles may be taken into the grout. Therefore, a transition hopper must be equipped to remove the air bubbles in slurry. 2. Using Electric Hand Drill Mixer: electric power must be no less than ***0W and the mixing barrel should be made of steel plate with a diameter in the range of **0ï&frac*2;ž**0mm. Pour the water and 2/3 of track ducb into the mixing barrel and stir for about *0s, then add the remaining grouting material and stir it. The total mixing time is 4 ~ 5 minutes. The Mixer should be moved up and down or sideways when mixing, so that the grunt stick to the barrel bottom and wall can be fully mixed. However, make sure the blades do not rise out of the grout, lest too much air is taken in. 3. Mixing site should be as close as possible to the grouting site. 4. Note: If the water is excessive, There will be bleeding, settlement stratification in grunt, which will affect the performance of the grouting.  Grouting • During grouting, grout should be poured in from multiple locations of one side until it overflows from another side, instead of pouring grout from four sides at the same time, which is to facilitate the expulsion in the grouting. Once begin, the grouting must be implemented continuously, without interruption. And for the grouting time, the shorter, the better. • Construction joint must be set aside the links not in the central of plate • During grouting ï&frac*4;Œappropriate knocked plate in order to increase the compaction and construction scheduleï&frac*4;ŒVibration by vibrating tube is strictly prohibited in the grouting process  Winter construction • When the environment temperature is below 5 ° c , winter construction should operate according to the grouting requirements. • Before the grouting preheat the surface of the foundation with boiled water, maintain the temperature above *0 ° and clear water, • With the *5 ~ *0 degrees of warm water and daub materials, the temperature of grouting pouting into the mould is above *0 °.  Raise • After grouting should spray bare should in time covers maintenance or with wet plastic sack, and cover wet grass package then keep wet. • Using plastic mulch, bare surface should be kept strictly covered. • Water conservation shall not be less than 7 days and the time of watering frequency should keep the grouting material in the wet state. • The water to maintain the RG-N Track daub should be the same with mixing water.  winter curing • When winter construction of grouting project has no special requirements on strength increasing, after grouting you should cover the bare parts with plastic film and sealed heat insulation material. Starting curing temperature should be no less than 5 ° c. In a negative temperature condition maintenance is without watering, • If it needs to accelerate growth or environmental temperature below the minimum temperature, curing mode can use artificial heating maintenance: the current construction projects shall conform to the winter construction procedures of the relevant provisions of theï&frac*4;ˆJGJ**4ï&frac*4;‰.