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Grouting Pumps

Manufacturers and Wholesellers of Cement Grouting Pumps.

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Pressure Grout Pumps

Item Code: 3KG_CM2_42_PSI

The HARJAI Standard Grout Pump is a simple but efficient low cost equipment ideally suited for grouting cable ducts in small and medium sized pre stressed concrete members. It is a hand operated stirrup pump of the diaphragm type in which grout is drawn up the suction pipe past a simple non return ball valve, and on the pressure stroke is driven forward into the feed hose through 'a similar non-return valve. Site trials of grouting of ducts in normal beams have shown that the HARJAI Standard Grout Pump can supply 130 liters of neat cement grout per hour of pumping time, which means it is a pump having a fairly large capacity. The maximum working pressure is 3 Kg/cm2 (42 psi).

 

GROUTING PRACTICE : The purpose of grouting post tensioned tendons in pre stressed concrete members is to provide permanent protection to the post tensioning steel and to develop bond between the pre stressing steel and the surrounding concrete. This also applies to grouting of soil and rock anchors. However, in the case of soil and rock anchors, since the hardened grout sustains the full pre stressing force, more detailed consideration has to be given to grout strength and injection procedures.

Manual Grout Pump

HARJAI - a name synonymous with quality for almost 50 years, performance and durability-offers yet another product to cater to Civil Engineering Industry to maintain quality of concrete at site.

 

The HARJAI Standard Grout Pump is a simple but efficient low cost equipment ideally suited for grouting cable ducts in small and medium sized pre stressed concrete members. It is a hand operated stirrup pump of the diaphragm type in which grout is drawn up the suction pipe past a simple non return ball valve, and on the pressure stroke is driven forward into the feed hose through 'a similar non-return valve. 

 

GROUTING PRACTICE: The purpose of grouting post tensioned tendons in pre stressed concrete members is to provide permanent protection to the post tensioning steel and to develop bond between the pre stressing steel and the surrounding concrete. This also applies to grouting of soil and rock anchors. However, in the case of soil and rock anchors, since the hardened grout sustains the full pre stressing force, more detailed consideration has to be given to grout strength and injection procedures.

Manual/Hand Operated Cement Grouting Pumps

We offer Hand Operated Manual Cement Grouting Pumps. It is useful for Water Proofing and is of Diaphragm Based with handle.

10kg Pressure/140Psi .

Hot Selling Product.

Rated No.1 by Dewatering Contractors
 

Cement Grouting Pump

14 kg/ cm. 200 PSI heavy duty diaphragm type hand operated cement grouting pump with handle along with suction and delivery pipe and nipples and foot valve.

Manual Cement Grouting Pump

3 kg/ cm. Hand operated. Grouting pump diaphragm type with handle.

Grouting Pumps

We are oldest and Largest manufacturers of Cement Grouting pumps widely used for waterproofing purposes. We have a huge variety of manual Cement Grouting Pumps and all spares are readily available in bulk quantities. Our Grouting pumps are known for their quality and performance all over India and our customers have rated them number one. 

High Pressure Grout Pumps

HARJAI high pressure grout pump is designed for use in medium and large sized pre stressed concrete works. It is a hand-operated diaphragm unit and weighs only 9 kg. It is easily handled and particularly suited for working on scaffolding or where operating space is restricted. The pump produces a pressure of 10 kg/cm2 (140 psi) and delivers 600 liters of neat cement grout per hour of pumping. The pump is so designed that all working parts are readily accessible for easy maintenance.

ADMIXTURES: Research has confirmed that for basically horizontal tendons in rigid ducts, satisfactory quality of grout may be achieved without use of any admixtures. However, admixtures, if used should impart the properties of low water content, good flowing ability and minimum bleed. Its formula should contain no chemicals in quantities that may have harmful effect on the pre stressing steel or cement. Admixtures containing chlorides (as CI. in excess of 0.5 percent by weight of admixture) fluorides, sulphates and nitrates should not be used. If desired aluminum powder of the proper fineness and quality which is well dispersed can be used to obtain a 5 to 10 percent unrestrained expansion of the grout. All admixtures should be used in accordance with the instructions' of the manufacturer

Grout Pump Hand Operated

We are Manufacturers and Whole sellers of Cement Grouting Pumps (Manual)

We have readily available with us Heavy Duty Grouting Pumps.

Our pumps are made using best quality raw material.

 

Injection Grouting Pump 200psi High Speed

  • HARJAI high pressure grout pump is designed for use in medium and large sized pre stressed concrete works. It is a hand-operated piston type high speed pump and weighs only 15 kg. It is easily handled and particularly suited for working on scaffolding or where operating space is restricted. The pump produces a pressure of 14 kg/cm2 (200 psi) and delivers 600 liters of neat cement grout per hour of pumping. The pump is so designed that all working parts are readily accessible for easy maintenance.

  • ADMIXTURES: Research has confirmed that for basically horizontal tendons in rigid ducts, satisfactory quality of grout may be achieved without use of any admixtures. However, admixtures, if used should impart the properties of low water content, good flowing ability and minimum bleed. Its formula should contain no chemicals in quantities that may have harmful effect on the pre stressing steel or cement. Admixtures containing chlorides (as CI. in excess of 0.5 percent by weight of admixture) fluorides, sulphates and nitrates should not be used. If desired aluminum powder of the proper fineness and quality which is well dispersed can be used to obtain a 5 to 10 percent unrestrained expansion of the grout. All admixtures should be used in accordance with the instructions' of the manufacturer.

Hand Grout Pump

HARJAI high pressure grout pump is designed for use in medium and large sized pre stressed concrete works. It is a hand-operated diaphragm unit and weighs only 9 kg. It is easily handled and particularly suited for working on scaffolding or where operating space is restricted. The pump produces a pressure of 10 kg/cm2 (140 psi) and delivers 400 liters of neat cement grout per hour of pumping. The pump is so designed that all working parts are readily accessible for easy maintenance.

Hand Grouting Pump

HARJAI high pressure grout pump is designed for use in medium and large sized pre stressed concrete works. It is a hand-operated diaphragm unit and weighs only 9 kg. It is easily handled and particularly suited for working on scaffolding or where operating space is restricted. The pump produces a pressure of 10 kg/cm2 (140 psi) and delivers 400 liters of neat cement grout per hour of pumping. The pump is so designed that all working parts are readily accessible for easy maintenance.

Characteristics

·         Design in conformity with International standards.

·         Excellent results on light duty jobs

·         Economical solution 

Dimensions

·         Ranging from 42psi to 200psi

 

Grout Pumps

 

HARJAI high pressure grout pump is designed for use in medium and large sized pre stressed concrete works. It is a hand-operated diaphragm unit and weighs only 9 kg. It is easily handled and particularly suited for working on scaffolding or where operating space is restricted. The pump produces a pressure of 10 kg/cm2 (140 psi) and delivers 400 liters of neat cement grout per hour of pumping. The pump is so designed that all working parts are readily accessible for easy maintenance.
ADMIXTURES: Research has confirmed that for basically horizontal tendons in rigid ducts, satisfactory quality of grout may be achieved without use of any admixtures. However, admixtures, if used should impart the properties of low water content, good flowing ability and minimum bleed. Its formula should contain no chemicals in quantities that may have harmful effect on the pre stressing steel or cement. Admixtures containing chlorides (as CI. in excess of 0.5 percent by weight of admixture) fluorides, sulphates and nitrates should not be used. If desired aluminum powder of the proper fineness and quality which is well dispersed can be used to obtain a 5 to 10 percent unrestrained expansion of the grout. All admixtures should be used in accordance with the instructions' of the manufacturer.
 


     

    Cement Grouting

    Injection grouting is usually carried out from the surface and is the common method for filling cracks, open joints, and interior voids with a material that cures in place to produce the desired results. . Grouting can strengthen a structure and can prevent water movement. Proper grouting material is to be selected for a particular project to achieve the desired objectives, while cores are tested to ensure quality control.

     

    Short entry holes (called ports) are drilled into the opening having a minimum diameter of 25 mm and a minimum depth of 50 mm. These holes are drilled from face of the concrete at spacing of 150 mm c/c for finer cracks to 300 mm c/c for others (to be used as entry and venting terminals). The spacing of ports is usually kept greater than the desired depth of grout penetration, but it may be adjusted based on judgment and requirements for a particular project. The crack / opening surfaces between ports are sealed by applying epoxy, polyester, strippable plastic surface sealer (for low injection pressures) or cementitious seals (if surface appearance is important) to the surface of the crack. Time required for hardening of seal depends upon the type of material used. To stiffen the surface seal, the cracks are usually routed 6 mm in width and 13 mm in depth.

    Sometimes, the crack can be cut out to a depth of 13 mm and width of about 20 mm in a V-shape, which is then filled with an epoxy to get a flush surface. When the ports are drilled after sealing the openings and the grout pressure is up to 350 kPa, a hand-held, cone-shaped fitting on the grout hose is sufficient. If cracks pass through the structure (such as a wall) the surface seals and ports are applied on both sides. Openings may be sealed by plugging with cloth or fabric that allows passing of water or air but retaining of solids. Paper and other materials that remain plastic are not suitable for this purpose. For larger grout pressures, short pipe nipples are connected in to the holes to obtain grout hose connections. The method of installing entry and vent ports in case of V-grooving of the cracks is to drill holes 20 mm in diameter and 13 to 25 mm deep below the groove at the required spacing. A pipe nipple or tire valve stem is usually bonded with an epoxy adhesive. The method commonly used in case of rectangular grooves is to use a flush fitting has an opening at the top for the adhesive to enter and a flange at the bottom that is bonded to the concrete face. Third method is to use special gasket devices which can be directly fitted on to the discontinuities / openings in the surface seals. Before grouting, flushing is done with clean water to obtain the following objectives:

    1. To wet the interior surfaces for better grout flow and penetration.

    2. To check the effectiveness of the surface sealing and port system.

    3. To gather information on grout flow patterns and details of interconnections of voids / discontinuities in the mass.

    4. To familiarize the grouting crew with the situation.

    Full crack cleaning may not be possible in practical situations and judgment must be used to decide the extent of this cleaning. Grouting is started at one end of a horizontal opening or at the bottom of a vertical opening. It is continued until grout appears at the next port or the surface seals of cracks bulge out, after which the grouting operation is shifted to the next port. The port valves from where the grout is coming out are plugged before moving to the next injection location.

    Cement Grouting Machine

    DUCTS :

    All ducts should have grout opening at both ends. Grout vents at high, and low points of draped cables are normally not necessary for tendons up 120 m Length. However, low point drain vents should be provided in works located in freezing climates for draining rain water etc. For tendons made up of a number of wires, bars or strands the cross sectional area of the duct should be at-least twice larger than the nominal diameter of the wire, bar or strand.

     

    MIXING OF GROUT AND GROUTING:

    Grout can be manually mixed in drum or with a mechanical grout mixer (Agitator). Correct Amount of water should first be poured into the mixer/drum followed by correct quantity of Portland cement. SAND SHOULD NOT BE ADDED. Mixing should be of such duration as to obtain a uniform thoroughly blended grout (without excessive temperature increase in the case of mechanical mixing). The grout should be kept continuously agitated until it is pumped. Normally mechanical mixtures require 1 1/2 to 3 minutes to satisfactorily mix the grout and manual mixing takes about 3 to 5 minutes.
    For grouting with HARJAI High Pressure Grout Pump should be placed over a bucket containing the mixed grout. When using HARJAI High Pressure Grout pump its sieved suction funnel should be placed inside the grout. In either case, the suction inlet of the grout pump should be kept low inside grout. Start pumping to check the operating of the pump so that grout starts to flow freely through the pump.

    Continue pumping with steady even strokes and keep the grout pump bucket topped up with grout and keep the grout gently agitated whilst pumping. Do Not allow the level of Grout in the bucket to fall below the Suction inlet of the pump.
    Once pumping has commenced it should be continued without ceasing until the duct concerned is full. When a member contains several ducts these should be grouted in order from the lowest to the highest. Always complete the full grouting of a member in one continuous series of operations. If a member is made-up of precast segments which are assembled together and post tensioned, grouting should be done after complete pre stressing of the entire beam whenever this possible. Do not grout if there is any danger of freezing weather occurring before the grout is set. If the pump tends to block keep the suction inlet sieve of pump manually cleaned whilst grouting. If this does not help, dismount the pump and pump clean water through it. On reconnecting, regard the duct as un grouted and pump enough additional grout through to fill the duct and provide 25% excess. This will ensure that no air pocket is left by the disconnection.
    When the duct is completely full of grout allow sufficient quantity of grout to over flow from the other end to ensure no air pockets are left. Once thick grout starts flowing from the other end of the duct, plug the vent hole and continue pumping till the pump become hard to operate. Close the pressure retaining grout cock on the pumping side and unscrew the coupling. The pressure retaining grout cock can be unscrewed only after the initial-set of the grout which will be about 2 1/2 to 3 hours after grouting. The grout cock should be thoroughly cleaned immediately after it is unscrewed to remove all grout from the inside.


    Cement Grouting Machine

    Item Code: INJECTIONGROUTINGPUMP

    MANUFACTURERS AND SUPPLIERS OF TOP QUALITY CEMENT GROUTING PUMPS

    DUCTS :

    All ducts should have grout opening at both ends. Grout vents at high, and low points of draped cables are normally not necessary for tendons up 120 m Length. However, low point drain vents should be provided in works located in freezing climates for draining rain water etc. For tendons made up of a number of wires, bars or strands the cross sectional area of the duct should be at-least twice larger than the nominal diameter of the wire, bar or strand.

     

    MIXING OF GROUT AND GROUTING:

    Grout can be manually mixed in drum or with a mechanical grout mixer (Agitator). Correct Amount of water should first be poured into the mixer/drum followed by correct quantity of Portland cement. SAND SHOULD NOT BE ADDED. Mixing should be of such duration as to obtain a uniform thoroughly blended grout (without excessive temperature increase in the case of mechanical mixing). The grout should be kept continuously agitated until it is pumped. Normally mechanical mixtures require 1 1/2 to 3 minutes to satisfactorily mix the grout and manual mixing takes about 3 to 5 minutes.
    For grouting with HARJAI High Pressure Grout Pump should be placed over a bucket containing the mixed grout. When using HARJAI High Pressure Grout pump its sieved suction funnel should be placed inside the grout. In either case, the suction inlet of the grout pump should be kept low inside grout. Start pumping to check the operating of the pump so that grout starts to flow freely through the pump.

    Continue pumping with steady even strokes and keep the grout pump bucket topped up with grout and keep the grout gently agitated whilst pumping. Do Not allow the level of Grout in the bucket to fall below the Suction inlet of the pump.
    Once pumping has commenced it should be continued without ceasing until the duct concerned is full. When a member contains several ducts these should be grouted in order from the lowest to the highest. Always complete the full grouting of a member in one continuous series of operations. If a member is made-up of precast segments which are assembled together and post tensioned, grouting should be done after complete pre stressing of the entire beam whenever this possible. Do not grout if there is any danger of freezing weather occurring before the grout is set. If the pump tends to block keep the suction inlet sieve of pump manually cleaned whilst grouting. If this does not help, dismount the pump and pump clean water through it. On reconnecting, regard the duct as un grouted and pump enough additional grout through to fill the duct and provide 25% excess. This will ensure that no air pocket is left by the disconnection.
    When the duct is completely full of grout allow sufficient quantity of grout to over flow from the other end to ensure no air pockets are left. Once thick grout starts flowing from the other end of the duct, plug the vent hole and continue pumping till the pump become hard to operate. Close the pressure retaining grout cock on the pumping side and unscrew the coupling. The pressure retaining grout cock can be unscrewed only after the initial-set of the grout which will be about 2 1/2 to 3 hours after grouting. The grout cock should be thoroughly cleaned immediately after it is unscrewed to remove all grout from the inside.




    Other Information
    • Minimum Order Quantity: 01 Piece
    • Port of Dispatch: NEW DELHI
    • Delivery Time: READY STOCK

    Cement Pressure Grout Pump

    Why us ?

    1. Harjai And Company is the Oldest and the largest Manufacturers and Suppliers of Cement Grouting Pumps in India (almost 50 years).
    2. Harjai and Company is an ISO 9001:2008 Certified Company conforming to highest quality standards.
    3. Harjai And Company is founded and run by Well Qualified Engineers of India's most Prestigious Institutes.
    4. HARJAI CEMENT GROUTING PUMPS are made using best raw material and engineering techniques.
    5. HARJAI CEMENT GROUTING PUMPS give consistent pressure and the diaphragm we use is in-comparable.
    6. As a policy we do not indulge in cheap practices of lowering our quality which may impact our goodwill in the market.
    7. Almost All Big Construction Companies and Waterproofing Contractors have purchased our Cement Grouting Pumps and have been kind enough in repeating their orders.


    Harjai And Company

    Mr. Sachin Harjai
    No. 45, 1st Floor, S. N. Marg, G. B. Road
    Delhi - 110006
    India
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