聚氨酯灌浆材料(WPU) Polyurethane Grouting Material (WPU)
单组份WPU发泡堵水液(亲水性)
  聚氨酯灌浆材料(水溶性)是应用于水池、大坝基础、隧道、矿井等土木工程、水利水电、交通、地下工程混凝土裂缝修补、灌浆堵漏、帷幕防渗、加固补强等工程的新型灌浆材料。它遇水后立即反应,体积迅速膨胀,生成一种不溶于水,有较高强度和弹性的胶体,水溶性聚氨酯灌浆材料包水量大、渗透半径大。

一、该产品具有以下特点:
  1.浆液与水反应,形成不透水的固结体,可用于封堵强烈的涌水和阻止地基中的流水。
  2.浆液生成固体物质的同时释放气体,浆液借助气体的压力可进一步压进疏松的空隙中,使多孔性结构或地层裂缝能完全被浆液充填密实。
  3.聚脂氨酯与土粒粘合力大,形成高强度弹性固结体,防止地基变形、龟裂、崩坏,从而使地基得到补强。
  4.浆液的粘度、固化速度可以调节。注浆设备与工艺简单,投资费用少。
  Polyurethane Grouting Material (soluble) is a new type of grouting material used for concrete crack patching, grouting and blocking of water leakage, curtain anti-seepage, reinforcement and strengthening in civil engineering projects, hydraulic and hydroelectricity projects, transportation projects, underground projects including water pools, dam bases, tunnels, mines etc. It reacts with water immediately, expands quickly and generates a kind of colloid which is insoluble, high-strength and high resilient. So the material performs well with a big water content and infiltration radius.

Ⅰ. Product Characteristics
   1. The slurry reacts with water and generates a insoluble solid which can be used to block strong gushing water or stop the running water in the foundation.
   2. Air is released when the solid is generated. The air can further press the slurry into loose clearance, which can completely fill the porous structure or fracture formations with the slurry.
   3. polyurethane produces strong adhesive force with soil and forms high-strength and resilient solid which can prevent soil deformation, cracks and collapse, thus reinforce the foundation.
   4. The viscosity and curing rate can be adjusted. Investment is limited due to simple grouting equipment and techniques.
二、技术指标:国家行业标准 Ⅱ. Technical Index: National Industry Standards
序号 项目 WPU型指标
1 密度 ≥1.00
2 1粘度(mpa.s) ≤1000
3 凝胶时间/S ≤150
4 包水性(10倍水) ≤150
5 不挥发物含量/%  ≥75
6 发泡率/% ≥350
 
serial number Project WPU Index
1 Density(g/cm3 ≥1.00
2 Viscosity(mpa.s) ≤1000
3 Gel time(/s) ≤150
4 包水性(10倍水) /s ≤150
5 nonvolatile matter content /%   ≥75
6 foaming capacity /% ≥350
三、施工工艺
  1.仔细检查漏水部位,清理裂缝附近污物,以备灌浆。
  2.布孔:在裂缝处打灌注孔,对深层裂缝可以钻斜孔穿过缝面,一般孔距0.2-0.5米,深度为混凝土厚度1/2左右。
  3.埋嘴封缝:埋入灌浆嘴,用快干水泥埋嘴封缝。
  4.灌浆:根据缝的具体情况确定灌浆压力,灌浆量,当邻孔出现浆液时,移至邻孔,在规定压力下并浆,直至达到灌浆结束标准。
  5.浆液固化后去除灌浆管,用快干水泥封闭。
  6.结束后用丙酮清洗注浆机及其他工具。

四、注意事项
  1.必须在专业人员指导下施工,并配带必要的防护工具。
  2.请使用专业注浆机,推荐使用LB-518型高压注浆机。
  3.避免液料喷入眼内,万一喷到,请立即用清水冲洗。
  4.施工场所必须侧通风,禁止烟火并注意用电安全。

五、包装及储运
  1.10kg/桶,20kg/桶。
  2.本品贮存在干燥、通风、阴凉处,保质期自生产之日起未启封6个月。
  3.运输中不得碰撞、直晒、雨淋、防止烟火。

  公司产品还有聚氨酯道路嵌缝胶、聚氨酯防水涂料(单组份、双组份、高铁专用)、油溶性聚氨酯灌浆材料、LB-518高压注浆机
Ⅲ. Construction Technology
   1. Check carefully the leakage parts clear the dirt around the cracks for grouting.
   2. Hole Arrangement: cut grouting holes at cracks, cut slant holes for deep cracks to cross the quilt top. Commonly 0.2-0.5 meter space between each hole and one half of the concrete thickness as the depth of the holes.
   3. Crack Sealing: put in grouting nozzle and seal the cracks with jet cement.
   4. Grouting: set the grouting pressure and amount according to the specific crack conditions. When slurry can be seen in the neighboring hole, move to it, grout at the named pressure till the finishing grouting standards.
   5. Remove the grouting nozzle when slurry is solidified and seal the crack with jet cement.
   6. Clean the grouting machine and other tools with acetone after completing all the work.

Ⅳ. Note
   1. The construction work shall be carried out under the instruction of professionals and necessary protection tools shall be applied.
   2. Professional grouting machines shall be used, preferably type LB-518 grouting machine.
   3. The slurry shall be avoided to get in eyes. In case it happens, clean with water immediately.
   4. The construction site shall be ventilated, smoke or fire-prohibited; Power safety shall be noticed.

Ⅴ. Package, storage and Transportation
   1. 10 or 20 kg per bucket.
   2. Stored at dry, cool and ventilated places. Storage life one year unopened from the date of production.
   3. No crash, direct sunshine, exposure to rain or smoke during transportation.   Our company also provides polyurethane road sealing glue, polyurethane waterproof materials (single composition, double composition and for high speed railway sole use), oil-soluble polyurethane grouting materials, LB-518 High Pressure Grouting Machine.