One important activity on site is the application of Anti-termite treatment. By the way, this is always written in the specification.
This activity shall be done before the Blinding Works. But before we submit a Method Statement for this activity to the Engineer we should first read again the specification in order to comply with the specific requirements being written on it.
Application of Anti-termite
Here is the Method Statement for Anti-termite Treatment.
1. Title
Method Statement for Anti-termite Treatment
2. Purpose and scope
2.1 The scope of the work is a proper way of Anti-termite Treatment ( vertically and horizontally ) with the use of (approved Anti-termite Material ) on all concrete in contact with the soil.
3. Work Procedure for this Method Statement for Anti-termite Treatment
3.1 Preliminary Activities
3.1.1 Properly coordinate with the concerned party or main contractor on how the process will be done with regards to application scheduling and area preparation.
3.1.2 Coordinate and confirmation of people’s site access. And the water source accessibility on site.
3.1.3 The Method Statement ( MS ), Material Safety Data Sheet ( MSDS ), and Material Approval Request ( MAR) must be on hand with the QA/QC Engineer before the commencement of the work.
3. 2 Preconstruction Activities
3.2.1 Remove all wooden pieces, concrete debris, plastic strips, tree stump roots, deleterious materials, etc.
3.2.2 The soil shall be leveled and compacted if in case the bottom of the blinding before treatment starts.
3.2.3 All construction-related tests shall be approved by the Engineer prior to treatment.
3.3 Construction Activities
3.3.1 Under PCC of Foundation
a. After the advice of the Engineer to proceed, the application shall immediately begin by first preparing and mixing the solutions of Approved Anti-termite material diluted with water at a rate of 1:49 Liter water as per manufacturer’s recommendation.
b. A solution of approved Anti-termite material diluted with water at a rate of 1:49 Liter shall be sprayed prior to casting of blinding of footing or any foundation type with the application rate of 4 to 5 liter per square meter.
c. The treated area shall then be covered with a polythene sheet, it can be opened free until 2 hours, and then casting can be started. Casting must be completed by 2 to 24 hours after the Anti-termite treatment or application.
3.3.2 Trench Around the Foundation Wall
a. Backfill the sides up to the top level of the proposed foundation ( considering that the height of the foundation will exceed more than 1 meter ).
b. Make a trench with 150mm width by a 150mm depth along the perimeter of the foundation.
c. A solution of Approved Anti-termite material diluted with water at a rate of 1:49 Liter shall be sprayed with an application rate of 5 -6 Liter per linear meter int the trench along the perimeter of the foundation.
d. The trench shall be backfilled within 24 hours of treatment.
3.3.3 Under PCC of Tie Beam
a. A solution of Approved Anti-termite material diluted with water at a rate of 1:49 Liter shall be sprayed prior to the casting of PCC of tie beams with the application rate of 4 to 5 Liter square meter.
b. The treated area must be immediately covered by polythene sheet, it can be uncovered for 2 hours before casting. And casting must be completed by 2 to 24 hours after the Anti-termite treatment or application.
Polythene sheet covering
3.3.4 Underground Concrete Slab and Along the Side of the Beams
a. The trench shall be constructed with a measure of 150mm by a 150mm depth along the perimeter of the tie beams.
b. A solution of the Approved Anti-termite material diluted with water at a rate of 1:49 Liter will be sprayed prior to ground slab casting with the application rate of 4 to 5 per square meter.
c. With the same solution of Approved Anti-termite material, apply 5 to 6 Liter per linear meter into the trench along the perimeter of the tie beams. Backfill the trench after letting the termiticide subside within 2 hours. The backfilling must be done within 2 to 24 hours after the anti-termite application.
3.3.5 Along the Outside Perimeter of the Building
a. Make a trench, 150mm in width and 150mm in-depth, along with the external perimeter of the building at the same level of the landscape.
b. A solution of Approved Anti-termite material diluted with water at a rate of 1:49 Liter will be sprayed into the trench along the external perimeter of the building with an application rate of 5 to 6 Liter per linear meter.
c. Backfill the trench within 2 to 24 hours after the treatment.
4. Safety
4.1 All works shall comply with the safety procedure or instruction as set out in project safety plan and municipality rules and regulations.
4.2 Basic Personal Protective Equipment ( PPE ) shall be worn by all staff or laborers.
4.3 All operatives shall be inducted before entering the site.
4.4 Toolbox talk shall be conducted before the activity.
5. Equipment and Tools
5.1 Power Sprayer (diesel-driven) fixed at the carriage of the service car
5.2 Spray Nozzle ( used to facilitate the formations of spray in the targeted area)
5.3 Personal Protective Equipment, Safety helmet, Safety gloves, Safety shoes, eye protection or goggles, approved respirator, and safety jacket.
6. Materials and Reference
6.1 Approved Anti-termite Material
6.2 Approved Shop Drawing or Sketch
So I am hoping that the above Method Statement for Anti-termite Treatment has brought information to the Engineers and if you have any comments please put your comments below. You may subscribe to get a new post in your inbox. Thanks for visiting this site.
Hi Noel
Thanks for the detailed information about anti-termite. I have further question. We have slab and adjoining column footing which is touching the soil. anti termite is required to applied below the footing also or just below the slab. How about the sides of the footing? What should be the sequence?
Hello VVV,
Yes, everything underground. The sides can be excavated for about 15 to 20cm and then apply the anti-termite.
Hope this help.
I hope that you will never stop updating us about this type of article.
Thanks for stopping by.
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Dear Noel,
A wonderful article and provides deep understanding of termite proofing in building construction.
I intend to construct a home and foundation is started from PCC (1:4:8) of 6inch thickness and then brick work shall start over that PCC.
I would like to know either I should go for termite proofing of trenches prior laying PCC or after laying PCC.
Your expert opinion is urgently requested.
Regards,
Awais Ahmad
Hi Awais,
Yes, ensure termite control application before anything else.
Good luck and thanks.
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very helpful tips.
Thank you.
Thankyou for this. very helpful!!
Welcome and thanks for stopping by.
termites are the worst. helpful content!!
Thanks a lot and thanks for stopping by.
Hi noel
For underground structures, there are several requirements such as (1) ground compaction; (2) lean concrete; (3) water proofing and (4) anti-termite treatment, etc..
could you be kind enough to advise the correct sequence? (1) then (2) then (4) then (3)?
Thanks so much.
Hi Seah,
The work sequence should be 1, 4, 2, and 3.
Thanks for stopping by.
Hi Sir Noel,
The article is very useful. Thank you. I have one question, based on your vast experience in construction, when is the best time to put the anti-termite, on the foundation soil where the footing blindings will rest or on the substrate soil where the ground floor concrete will rest?
Hello Jun,
It is in both areas, the principle here is wherever the concrete touches the soil/substrate/ground there would be always anti-termite application.
Hey, I just need to ask is it necessary to do twice anti-termite treatment or just once will help to stay them away.
Hi,
Just once is enough but you can apply several periods if wish.
Regards,
Noel
Sir Noel,
How could replenish chemicals after the period chemical expires?
Hello Sam,
There is no way to replenish if the chemical has expired. You need to redo the process.
Regards,
Hello, is there any way to determine if wood has undergone anti termite treatment. Some test which can conclude that anti termite treatment conditioning is done satisfactorily.
We have done application of anti-termite on wood in one of our projects but we did not do any test. We just applied it by using brush. If you are the inspector just make sure that the applicator has properly applied the solution.
Dear Noel,
I am very pleased to read this valuable article written by your goodself. Kindly if you could share with me some references that which standards will be followed if we carry on this practice for termite treatment.
My email: [email protected]
Thank you and Best Regards,
Mirza Ahmad
Hi there. Our project Architect suggested to have a termite treatment additive to the concrete. Is there such a thing or is it possible? Appreciate your response.
Hello Mrz, There might be a new technology or inventions that anti-termite can be blended into concrete just check that out in google. But, so far here in Dubai, we are still using the conventional way which is liquid spray type.
Hi there, Do you ever heard about Anti-termite material diluted with diesel instead of water ? There is this kind of practice on site, may i know what is the pros and cons of it ?
Thank You for your help on termite treatment before and after construction.
Mr Mades, how about for underground structures such as subways let us say 25 meters below ground level with PVC Waterproofing membrane protection enclosure, is it required to apply termite treatment?
Depend on your specification or detail drawing. Kindly check there.
Good day Noel.
I have a method statement stating: “Using a special apparatus, punch the polythene sheet every 1m spacing in both directions and spray the termiticide under the polythene sheet until covering the whole portion.”
What is this special apparatus they are referring to?
Thanks for your blog and help.
Well, I think that’s a different case. I never had ever experienced that anti-termite application with that kind of apparatus. See the photos above – that’s how simple as that our application.
Good day. Great review and comments you have going here. I have two questions you can please help me with.
1. Is there a specific time after termite application, area must be left undisturbed? Eg. must be covered after two hours to allow for soil penetration?
2. In case of slab on grade with no blinding, how to prevent chemical from over-spilling and staining steel rebar and later on mix with concrete.
Thank you in advance for your advise.
Good day too!
Ans 1: It is said in the condition above that you only have “2 hours to let it opened free” after application. It means that it can be uncovered or allows no plastic covering for the span of 2 hours. My suggestion is to prepare plastic or polythene sheet before application of anti-termite so that you will not violate the requirements. Do cover the applied chemical immediately after application.
Ans 2: There is no overspilling, the chemical will be sprayed by an applicator as what was shown in the picture above. If there is no blinding protect it with approved thickness of polythene sheet after application of anti-termite. Make sure that polythene sheet is properly laid onto the surface where the chemical is applied before pouring SOG concrete.
I am hoping that the above answers your questions.
Welcome. Thanks for coming here.
I am planning to construct a Stilt + 2 floors for my own use. Stilt will be used as parking. My question is, whether the anti termite treatment required on the area of stilt parking ?
Please suggest.
Anti-termite is applicable only on the ground.
Hi, Noel my name is Clifford I’m struggling a bit here I’ve been trying to compile a method statement and risk assessment for raft foundation I saw your sample and I have to say it gave me a bit of light.
Please help
Hello, Clifford thank you for coming here on my blog. This is really for you guys and just comment in here on what kind of help do you need.
Good information for related field.
After reaching the final level of excavation, I am having one layer 200mm thick of road base(structural fill) before blinding concrete (pcc) where I have to apply my anti-termite, wether on soil or on structural fill?
Over structural fill and before pouring PCC.
Their is no anti termite treatment for road works, it’s for buildings.
How frequently should we do the anti termite treatment for a post construction site?
There is no anti termite on the post construction because it should have been applied prior to casting of blinding bottom of foundation and or slab on grade.
Thanks for your information.. Just I want to ask if I applied anti-termite under pcc then I covered by plastic then after 24 hours exactly I poured concrete , is there any problem?
Make sure it is fully covered with polythene sheet till 24 hours if more than that it is not accepted. It is written in the MS.
Sir may I know what is the meaning of MS? Thank you, sir.
It is Method Statement.
Hi we used home remedy for termites in wood. how many liter/s of water to dilute in an small bottle of termite solution?
Thanks
Hello. You can check the technical data sheet of that material it might be written there. You can ask the manafacturer or supplier.
How frequently should we do the anti termite treatment for a post construction site?
For every prepared area, just once.
Hi, the above post is very useful. My question is this, during application or before application how much optimum moisture content is needed? Second, after application is it okay if the soil treated will not be covered immediately for more than almost 24hrs?.. Because application was conducted during near off duty hours so polyethylene sheets is not immediately laid. Hope you can answer.
Thanks.
Hello, What do you mean by moisture content, is it on soil? The second question the answer is “No” the treated soil shall be covered by plastic sheet at least 2 hrs from treatment and it is still accepted until 24 hours. If it is uncovered by the plastic sheet for 24 hours, you have to redo the application. That is not acceptable.
In my Q1 above.
Is it good if the soil is too dry or need to be atleast a little wet surface before anti termite application?
It should be dry.
Ok, thanks you so much.
Yes, you’re welcome.
Useful information
Thanks
Hi Sir,
I have a question.
After application of chemical how many minutes it will take to lay concrete?
Do it have time to dry it or we pour concrete directly to a treated area?
Please let me know the answer..
Thanks
You can pour concrete right after the application of anti-termite but make sure the concrete will be over the plastic sheet.
Sir we are not using plastic. as we ditectly pour concrete. As it advisable to make it dry for 2 hours before pouring the concrete?
If you let it dry it is immaterial that is why we are covering plastic sheet after application. And if you pour concrete direct over the applied anti -termite there is a tendency that it will not work because there will be 2 or more chemicals will be blended and the result will be unwanted solution.
After Anti Termite Spray 2 to 24 Hours after laying Concrete
Yes after application of anti-termite, you can follow the pouring of concrete.
Dear Noel,
Thanks for this very useful information. I have a question I hope you can answer.
Does this treatment apply also to foundations that will be under the water table?
I’m sure the termites won’t be living anywhere below the water table.
Doesn’t the chemical barrier become ineffective once the dewatering releases the ground water?
And the chemicals used are pollutants, are they allowed to ground water?
Hi Carlo,
Firstly, thanks for appreciating the post.
Practically, it can’t be applied below water table because you know it become useless, it will only washed away. Unless your foundation will be protected with waterproofing. Definitely not because anti-termite lives only in dry soil or dry material that anti-termite can consumed.
Probably not allowed that’s why we spray it onto dry place.
Thank you for your prompt response. I totally agree with you. Can you point me to any publication or code that explicitly or clearly states that it is not needed or not allowed on structures below the water table? I have searched everywhere in the net but is unsuccessful.
Dears, if you found an article or publication that explains the uselessness of ant termite under water table levels I would appreciate it.
We have it specified under foundation and the water table is high.
Thank you, very much helpful indeed hope you can share more of your experiences.
Really have a lot of questions to ask.
Thanks for stopping by. You are always welcome.
A usefull SOP for ATT.
Thank you Ranjeet.
Respected sir. I need risk assessment for the anti termite.