Re-injectable Grout Hose

    After putting cement around LW repeatable injection pipe,the external pressure will make the chloroprene rubber belt fixed, and seal the grouting mouth and grouting channel.

Grouting pipe

The injection pipe solid lining is made from high quality of PVC.

The inner can absorb cement pressure, ensure the grouting pipe work together.

Lateral staggered shedding ensure uniform release of the grouting material.

The second stage: grouting

The compressible chloroprene  rubber belt in the longitudinal grooves is a unique and very  important part.

They play the valve's role when grouting and seal when cleaning.

     Internal grouting pressure will form pressure for the neoprene rubber belt,and inject the grouting material from eight longitudinal gap. This makes the grouting materials release from the whole injection pipe can maintain uniform.

The third stage: clean the injection pipe

LW repeatable grouting system is the leading waterproofing system,

and ensure that the joint 100% of water tightness.

Its unique "valve" design makes LW become

the only injection pipe system that can prevent fall leakage,repetitive grouting.

When using the grouting material which has got approval, LW repeatable injection pipe can be easily washed clean by water with vacuum pressure. Negative pressure can make chloroprene rubber belt reset,and prevent the injected material being absorbed into the grouting pipe during cleaning.

A series of characteristics and advantages

Repeatable grouting

Customer recognition

Wash by water or vacuum pressure,prepare for future use.

LW has been successfully used

in the United States and

the world and won the international recognition for 15 years.

Many grouting materials

Maintenance save worry

The fourth stage: prepare for the future grouting

LW system is suitable for a wide range of grouting materials.

The ability of repeatable grouting ensure that the building joints keep waterproof state in its life period.

     Can grout again at any time if need.

Testing capability

Easy installation

LW system can be used to test water tightness for the already or not grouting joints. Just water LW repeatable injection pipe is ok.

LW is installed before the

second grouting,and no need segmentation template.

Cut to the needed length

Injection  pipe and discharge tube

telescopic line

LW repeatable injection pipe

Connection nozzle

Sealing plug, prevent pollutants getting into injection pipe

Connect fiber reinforced PVC discharge outlet with LW repeatable grouting tube ends by connecting pipe mouth,strong glue and expansion casing.

Install plug to the fiber reinforced discharge pipe to prevent impurities from getting into the injection pipe.

length of injection hose

Cover at least 2cm cement overlay;

Not to install in ways of bend or limitation,and should not be connected in reinforcing bars as building support

Distance between two parallel injection pipes is at least 5 cm

Connect grouting pump at the end of the PVC emissions tube for future grouting, The fiber reinforced PVC pipe ends should be exposed to convenient, accessible place. Use terminal box, shoot to nail gun or directly extend fiber reinforced pipe to the cement external (see chart 3);

In many practical applications, it  requires the injection pipe cross each other. The intersection parts must maintain close contact with concrete,Discharge outlet part can overlap (see chart 1);

Extend the fiber reinforced discharge outlet about 10cm into the box when junction box used.

LW1

 6mm

19mm

3mm

20mm

LW2

10mm

24mm

5mm

25mm

2. Fill LW repeatable grouting tube with the grouting material by the help of appropriate grouting pump, until the material outflow from the other end of the PVC discharge outlet.Grouting material decides the requirements of the pump. In vertical placed grouting tube,the initial grouting should begin from the lowest emissions end and press the material upward.

3. Seal discharge outlet and continue to grout.It is usually more effective for a time-consuming grouting in a low voltage than a rapid one under high pressure.

4. Once the material no longer flows into the layup and pressure gauge showed no or few pressure loss,maintain pressure at least 2 minutes.

typical grouting pump

5. Ensure grouting operation occur within permitted grouting material use or coking time. If need repeat grouting,ensure the grouting materials are approved

6. Any grouting materials that stay in the grouting channels must be cleaned before the grouting medium hardening or coking

7. In order to clean LW repeatable injection pipe and fiber reinforced discharge outlet, the discharge pipe end use vacuum pump, the other end placed in water container.

8. Deal with LW repeatable injection pipe for future use.

cross section that has completed grouting