FAQ

Frequently asked questions about our products. 

RDC FAQ

RDC Road Dust control

What type of Industries use RDC?


RDC is used where there is airborne dust causing issues within the workplace or for road users. •Council Roads-dusty gravel roads •Highway Construction Haul Roads •Forestry Roads •Mine Roads •Commercial Yard •Agricultural applications •Private ratepayers




What is the Recommended Dose Rate


Initial recommended application rate of 2ltrs per sqm for the initial treatment with a top up of 1ltr per sqm if required (rising dust or extreme weather).




How do I apply RDC and what equipment do I require?


If the pavement is bone dry, then you will need to pre-wet it with water.Use a water cart or a spray unit capable of delivering a uniform spray to the surface of the pavement. Complete a test area spraying to calibrate the flow and speed of vehicle to get the specified amount of product onto the pavement. Pre-shaping the road and using a roller on site to follow behind the water cart will give your treatment longevity and a smooth finish but is not generally required.




Can RDC be used as a water saver?


Yes, RDC can be dilutedat 10:1(10%) to lower the frequency of watering for dust control, saving precious resources.




What type of soil can I use RDC on?


RDC can be used on most soil types that have a wellgraded grain size distribution with fines. RDC isnot compatible with plastic materials.




What affects the performance of RDC?


Prior to application no heavy rain should be forecast within 24 hours to give the product time to cure into the pavement.




Is RDC corrosive?


Gravel Lock’s proprietary additives have been proven to reduce corrosiveness to less than that of water.




How should I clean my equipment?


RDC is not difficult to remove, simply rinse spray units and bulk tankers with water.




How is RDC Supplied?


RDC is supplied in 1000ltr IBC’s or 20000ltrs bulk tanker delivery. Minimum order is a 1000ltrs in an IBC.




Where can I buy RDC from?


Gravel Lock has distribution points in Tauranga, Christchurch and Nelson we also import RDC from Adelaide for large scale jobsto a port of your choice. All purchases are ex works or CIF.




Payment Terms


Gravel Lock’s payment terms are prepaid or, if approved, on account.




Can I store RDC?


Yes you can store RDC outside for up to 12 months in a cool dry place. The easiest way to store your RDC is in totes or in a tank that can hold heavy liquids (1.3 SG).




What is the Specific Gravity of RDC?


RDC has a SG of 1.3 which needs to be accounted for when shipping or storing the product.




Does RDC have environmental approval?


Yes RDC is approved pursuant to the HSNO Act 1996, Approval number: HSR002764. Most NZ Councils do not need approval for RDC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with Road Dust Control, however you can certainly undertake a small trial. Minimum purchase is 1000ltrs in an IBCs.





 

HSC FAQ

Frequently asked questions

What type of Industries use HSC?


Being a stabilizing and dust suppression system combined into one that has the capability to self-heal, HSC can be used in many industries that require these unique qualities: Gravel Road Stabilization Haul Road Mining and Forestry Roads Construction Sites Car parks Cycle Ways Vineyards–Access Roads Standoff Pads Temporary Roads




What are the main benefits when using HSC?


HSC is an environmentally friendly, biodegradable, hygroscopic cement which is hard wearing, self-healing and can solidify any soil or aggregate. HSC is a non-hydraulic setting cement, it sets as it dries and reacts with carbon dioxide in the air.




How will using HSC save me money?


Using HSC you can significantly lower construction costs by the reduction of aggregate demands,decreased construction times, decreases in ongoing maintenance and, a significant reduction in the loss of expensive replacement aggregates. Where there is limited local material, HSC can be mixed with the insitu material to modify and improve marginal or substandard material–savings of up to 40% have been made using HSC.




How long do I have to keep my road/yard closed after using HSC?


Pavements can be trafficked while construction is taking place with traffic providing on going compaction.




Can I seal over a HSC treated pavement?


Yes definitely, With HSC the pavement can remain unsealed for lengthy periods (up to 2 years) which allows for contractors to undertake multiple works and seal when convenient.




Recommended Dose Rate


Minimum dose rate of 4kgs per sqm when using HSC for temporary stabilizing application such as forestry roads or construction sites. Application rates can increase to as much as 20kgs per sqm for car parks and heavy haul roads that are required to remain permanent.




What is the life span of HSC?


Normal life span is 1-2 years and with regular maintenance. If chip sealed, the pavement will last inexcess of 10 years.




How do I maintain my HSC treated pavement?


Treated pavements can be repaired using more of the same product for pothole filling, edge breaks and aggregate overlays. Once applied and cured, HSC is not water soluble. The pavement can be chip sealed up to 2 years following treatment.




How do I apply HSC and what equipment do I require?


HSC is either applicated by a Grader up to 75mm deep or a Mill for deeper applications.(*portable pump), Spreader Truck (alternative is manual application), Grader with rippers CAT 120gor larger, Water Cart 8000ltrs or more, Steel Drum Roller 8ton, Pneumatic Roller and Drag Broom.




What type of soil can I use HSC on?


HSC can be used on most soil types that have a well graded grain size distribution with fines. HSC is compatible with high plastic materials.




What affects the performance of HSC?


Performance Factors include application rate, soil type, dilution, compaction, traffic, penetration and climate




How should I clean my equipment?


For uncured cleaning, rinse equipment immediately with water. Once cured, HSC will form into a hard ceramic material in its pure form and is extremely difficult to remove from machinery. Removal is successful with high pressure water blasting. Ensure washing down equipment immediately and have appropriate traffic control to avoid splashing.




How is HSC Supplied?


HSC is sold as a powdered product and is supplied in 1000kg bulk bags.




Where can I buy HSC from?


HSC is manufactured and sold ex works Auckland or Melbourne.




Payment Term


Gravel Lock’s payment terms are prepaid or, if approved, on account




Can I store HSC?


HSC Powder needs to be stored inside out of the weather for up to 6 months.




Does HSC have environmental approval?


Yes, HSC is approved. HSNO Approval Number HSR002544. Construction Products (Subsidiary Hazard) Group Standard 2006Most NZ Councils do not need approval for HSC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with HSC, however you can certainly undertake a small trial to view performance of the product on your site.





 

FLEX-C-MENT FAQ

Frequently asked questions

What type of Industries use RDC?


RDC is used where there is airborne dust causing issues within the workplace or for road users. •Council Roads-dusty gravel roads •Highway Construction Haul Roads •Forestry Roads •Mine Roads •Commercial Yard •Agricultural applications •Private ratepayers




What is the Recommended Dose Rate


Initial recommended application rate of 2ltrs per sqm for the initial treatment with a top up of 1ltr per sqm if required (rising dust or extreme weather).




How do I apply RDC and what equipment do I require?


If the pavement is bone dry, then you will need to pre-wet it with water.Use a water cart or a spray unit capable of delivering a uniform spray to the surface of the pavement. Complete a test area spraying to calibrate the flow and speed of vehicle to get the specified amount of product onto the pavement. Pre-shaping the road and using a roller on site to follow behind the water cart will give your treatment longevity and a smooth finish but is not generally required.




Can RDC be used as a water saver?


Yes, RDC can be dilutedat 10:1(10%) to lower the frequency of watering for dust control, saving precious resources.




What type of soil can I use RDC on?


RDC can be used on most soil types that have a wellgraded grain size distribution with fines. RDC isnot compatible with plastic materials.




What affects the performance of RDC?


Prior to application no heavy rain should be forecast within 24 hours to give the product time to cure into the pavement.




Is RDC corrosive?


Gravel Lock’s proprietary additives have been proven to reduce corrosiveness to less than that of water.




How should I clean my equipment?


RDC is not difficult to remove, simply rinse spray units and bulk tankers with water.




How is RDC Supplied?


RDC is supplied in 1000ltr IBC’s or 20000ltrs bulk tanker delivery. Minimum order is a 1000ltrs in an IBC.




Where can I buy RDC from?


Gravel Lock has distribution points in Tauranga, Christchurch and Nelson we also import RDC from Adelaide for large scale jobsto a port of your choice. All purchases are ex works or CIF.




Payment Terms


Gravel Lock’s payment terms are prepaid or, if approved, on account.




Can I store RDC?


Yes you can store RDC outside for up to 12 months in a cool dry place. The easiest way to store your RDC is in totes or in a tank that can hold heavy liquids (1.3 SG).




What is the Specific Gravity of RDC?


RDC has a SG of 1.3 which needs to be accounted for when shipping or storing the product.




Does RDC have environmental approval?


Yes RDC is approved pursuant to the HSNO Act 1996, Approval number: HSR002764. Most NZ Councils do not need approval for RDC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with Road Dust Control, however you can certainly undertake a small trial. Minimum purchase is 1000ltrs in an IBCs.





 

XTM FAQ

Frequently asked questions

What type of Industries use HSC?


Being a stabilizing and dust suppression system combined into one that has the capability to self-heal, HSC can be used in many industries that require these unique qualities: Gravel Road Stabilization Haul Road Mining and Forestry Roads Construction Sites Car parks Cycle Ways Vineyards–Access Roads Standoff Pads Temporary Roads




What are the main benefits when using HSC?


HSC is an environmentally friendly, biodegradable, hygroscopic cement which is hard wearing, self-healing and can solidify any soil or aggregate. HSC is a non-hydraulic setting cement, it sets as it dries and reacts with carbon dioxide in the air.




How will using HSC save me money?


Using HSC you can significantly lower construction costs by the reduction of aggregate demands,decreased construction times, decreases in ongoing maintenance and, a significant reduction in the loss of expensive replacement aggregates. Where there is limited local material, HSC can be mixed with the insitu material to modify and improve marginal or substandard material–savings of up to 40% have been made using HSC.




How long do I have to keep my road/yard closed after using HSC?


Pavements can be trafficked while construction is taking place with traffic providing on going compaction.




Can I seal over a HSC treated pavement?


Yes definitely, With HSC the pavement can remain unsealed for lengthy periods (up to 2 years) which allows for contractors to undertake multiple works and seal when convenient.




Recommended Dose Rate


Minimum dose rate of 4kgs per sqm when using HSC for temporary stabilizing application such as forestry roads or construction sites. Application rates can increase to as much as 20kgs per sqm for car parks and heavy haul roads that are required to remain permanent.




What is the life span of HSC?


Normal life span is 1-2 years and with regular maintenance. If chip sealed, the pavement will last inexcess of 10 years.




How do I maintain my HSC treated pavement?


Treated pavements can be repaired using more of the same product for pothole filling, edge breaks and aggregate overlays. Once applied and cured, HSC is not water soluble. The pavement can be chip sealed up to 2 years following treatment.




How do I apply HSC and what equipment do I require?


HSC is either applicated by a Grader up to 75mm deep or a Mill for deeper applications.(*portable pump), Spreader Truck (alternative is manual application), Grader with rippers CAT 120gor larger, Water Cart 8000ltrs or more, Steel Drum Roller 8ton, Pneumatic Roller and Drag Broom.




What type of soil can I use HSC on?


HSC can be used on most soil types that have a well graded grain size distribution with fines. HSC is compatible with high plastic materials.




What affects the performance of HSC?


Performance Factors include application rate, soil type, dilution, compaction, traffic, penetration and climate




How should I clean my equipment?


For uncured cleaning, rinse equipment immediately with water. Once cured, HSC will form into a hard ceramic material in its pure form and is extremely difficult to remove from machinery. Removal is successful with high pressure water blasting. Ensure washing down equipment immediately and have appropriate traffic control to avoid splashing.




How is HSC Supplied?


HSC is sold as a powdered product and is supplied in 1000kg bulk bags.




Where can I buy HSC from?


HSC is manufactured and sold ex works Auckland or Melbourne.




Payment Term


Gravel Lock’s payment terms are prepaid or, if approved, on account




Can I store HSC?


HSC Powder needs to be stored inside out of the weather for up to 6 months.




Does HSC have environmental approval?


Yes, HSC is approved. HSNO Approval Number HSR002544. Construction Products (Subsidiary Hazard) Group Standard 2006Most NZ Councils do not need approval for HSC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with HSC, however you can certainly undertake a small trial to view performance of the product on your site.





 

CSC FAQ

Frequently asked questions

What type of Industries use HSC?


Being a stabilizing and dust suppression system combined into one that has the capability to self-heal, HSC can be used in many industries that require these unique qualities: Gravel Road Stabilization Haul Road Mining and Forestry Roads Construction Sites Car parks Cycle Ways Vineyards–Access Roads Standoff Pads Temporary Roads




What are the main benefits when using HSC?


HSC is an environmentally friendly, biodegradable, hygroscopic cement which is hard wearing, self-healing and can solidify any soil or aggregate. HSC is a non-hydraulic setting cement, it sets as it dries and reacts with carbon dioxide in the air.




How will using HSC save me money?


Using HSC you can significantly lower construction costs by the reduction of aggregate demands,decreased construction times, decreases in ongoing maintenance and, a significant reduction in the loss of expensive replacement aggregates. Where there is limited local material, HSC can be mixed with the insitu material to modify and improve marginal or substandard material–savings of up to 40% have been made using HSC.




How long do I have to keep my road/yard closed after using HSC?


Pavements can be trafficked while construction is taking place with traffic providing on going compaction.




Can I seal over a HSC treated pavement?


Yes definitely, With HSC the pavement can remain unsealed for lengthy periods (up to 2 years) which allows for contractors to undertake multiple works and seal when convenient.




Recommended Dose Rate


Minimum dose rate of 4kgs per sqm when using HSC for temporary stabilizing application such as forestry roads or construction sites. Application rates can increase to as much as 20kgs per sqm for car parks and heavy haul roads that are required to remain permanent.




What is the life span of HSC?


Normal life span is 1-2 years and with regular maintenance. If chip sealed, the pavement will last inexcess of 10 years.




How do I maintain my HSC treated pavement?


Treated pavements can be repaired using more of the same product for pothole filling, edge breaks and aggregate overlays. Once applied and cured, HSC is not water soluble. The pavement can be chip sealed up to 2 years following treatment.




How do I apply HSC and what equipment do I require?


HSC is either applicated by a Grader up to 75mm deep or a Mill for deeper applications.(*portable pump), Spreader Truck (alternative is manual application), Grader with rippers CAT 120gor larger, Water Cart 8000ltrs or more, Steel Drum Roller 8ton, Pneumatic Roller and Drag Broom.




What type of soil can I use HSC on?


HSC can be used on most soil types that have a well graded grain size distribution with fines. HSC is compatible with high plastic materials.




What affects the performance of HSC?


Performance Factors include application rate, soil type, dilution, compaction, traffic, penetration and climate




How should I clean my equipment?


For uncured cleaning, rinse equipment immediately with water. Once cured, HSC will form into a hard ceramic material in its pure form and is extremely difficult to remove from machinery. Removal is successful with high pressure water blasting. Ensure washing down equipment immediately and have appropriate traffic control to avoid splashing.




How is HSC Supplied?


HSC is sold as a powdered product and is supplied in 1000kg bulk bags.




Where can I buy HSC from?


HSC is manufactured and sold ex works Auckland or Melbourne.




Payment Term


Gravel Lock’s payment terms are prepaid or, if approved, on account




Can I store HSC?


HSC Powder needs to be stored inside out of the weather for up to 6 months.




Does HSC have environmental approval?


Yes, HSC is approved. HSNO Approval Number HSR002544. Construction Products (Subsidiary Hazard) Group Standard 2006Most NZ Councils do not need approval for HSC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with HSC, however you can certainly undertake a small trial to view performance of the product on your site.





 

PHF FAQ

Frequently asked questions

What type of Industries use RDC?


RDC is used where there is airborne dust causing issues within the workplace or for road users. •Council Roads-dusty gravel roads •Highway Construction Haul Roads •Forestry Roads •Mine Roads •Commercial Yard •Agricultural applications •Private ratepayers




What is the Recommended Dose Rate


Initial recommended application rate of 2ltrs per sqm for the initial treatment with a top up of 1ltr per sqm if required (rising dust or extreme weather).




How do I apply RDC and what equipment do I require?


If the pavement is bone dry, then you will need to pre-wet it with water.Use a water cart or a spray unit capable of delivering a uniform spray to the surface of the pavement. Complete a test area spraying to calibrate the flow and speed of vehicle to get the specified amount of product onto the pavement. Pre-shaping the road and using a roller on site to follow behind the water cart will give your treatment longevity and a smooth finish but is not generally required.




Can RDC be used as a water saver?


Yes, RDC can be dilutedat 10:1(10%) to lower the frequency of watering for dust control, saving precious resources.




What type of soil can I use RDC on?


RDC can be used on most soil types that have a wellgraded grain size distribution with fines. RDC isnot compatible with plastic materials.




What affects the performance of RDC?


Prior to application no heavy rain should be forecast within 24 hours to give the product time to cure into the pavement.




Is RDC corrosive?


Gravel Lock’s proprietary additives have been proven to reduce corrosiveness to less than that of water.




How should I clean my equipment?


RDC is not difficult to remove, simply rinse spray units and bulk tankers with water.




How is RDC Supplied?


RDC is supplied in 1000ltr IBC’s or 20000ltrs bulk tanker delivery. Minimum order is a 1000ltrs in an IBC.




Where can I buy RDC from?


Gravel Lock has distribution points in Tauranga, Christchurch and Nelson we also import RDC from Adelaide for large scale jobsto a port of your choice. All purchases are ex works or CIF.




Payment Terms


Gravel Lock’s payment terms are prepaid or, if approved, on account.




Can I store RDC?


Yes you can store RDC outside for up to 12 months in a cool dry place. The easiest way to store your RDC is in totes or in a tank that can hold heavy liquids (1.3 SG).




What is the Specific Gravity of RDC?


RDC has a SG of 1.3 which needs to be accounted for when shipping or storing the product.




Does RDC have environmental approval?


Yes RDC is approved pursuant to the HSNO Act 1996, Approval number: HSR002764. Most NZ Councils do not need approval for RDC as it is an approved activity, however where consent is required, Gravel Lock has gained the correct approvals.




Should I undertake a trial before making a large order?


Gravel Lock has many case studies that you can view on the web site for successful works with Road Dust Control, however you can certainly undertake a small trial. Minimum purchase is 1000ltrs in an IBCs.





 
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Where Science        Meets the Earth 

Gravel Lock Limited 

Where Science Meets the Earth

CONTACT

Phone: int +64 21677604

Phone: 0800 199 199

Email: info@gravellock.co.nz

Langs Beach, Northland,

New Zealand

WORKING HOURS

Mon - Fri: 9am - 5pm

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