Mukhya Bindu
- Gol post hole ke liye sutra hai pi x trijya vargh x gehrai
- Ek standard fence post hole 8 se 12 inch vyaas aur 24 se 36 inch gehra hota hai
- Ek 80 pound ka premix concrete bag lagbhag ek standard post hole bharta hai
- Concrete ko grade se lagbhag 2 inch neeche tak bharna chahiye taaki mitti upar ko dhak sake
- Thand mein frost depth nyuntam gaddhe ki gehrai nirdharit karti hai
Frost depth woh gehrai hai j tak mitti sardiyon mein jamti hai, jo yeh nirdharit karti hai ki frost heave ko rokne ke liye footing kitni gehri honi chahiye.
Bearing capacity mitti ki us bhar ko sahne ki shamta ko darshata hai jo post ya footing ke madhyam se sthanantarit hota hai.
Concrete mein post lagana aavasiya sampatti par sabse aam chhote pour ke kaamon mein se ek hai. Fence ke posts, deck footings, mailbox posts aur sign posts - sabhi ko seedha aur sthir rehne ke liye concrete chahiye. Ganit saral hai, lekin aayam logon ki apeksha se zyada mayne rakhte hain kyunki vyaas ya gehrai mein chhoti-chhoti galtiyan aaytan ko kaafi badal deti hain.
Yahan bataya gaya hai ki sahi matra kaise nikalein.
Gol gaddhe ke liye sutra
Ek belan ka aaytan pi x trijya vargh x unchai hota hai. Post hole ke liye, unchai gaddhe ki gehrai hai.
V = pi x r^2 x d
Ek post hole jo 10 inch vyaas aur 30 inch gehra ho:
r = 5 inch V = 3.14 x 25 x 30 = 2,355 cubic inch
Cubic feet mein badalne ke liye 1,728 (12 x 12 x 12) se bhaag dein:
2,355 / 1,728 = 1.36 cubic feet
Bag counting mein rupantaran
Ek 80 pound ka premix concrete bag lagbhag 0.6 cubic feet geela concrete deta hai. Ek 60 pound ka bag lagbhag 0.45 cubic feet deta hai.
Us 10 inch x 30 inch gaddhe ke liye:
1.36 / 0.6 = 2.27 bag
Ek gaddhe ke liye aapko lagbhag 2.5 bag 80 pound premix chahiye. Kul ke liye post ki sankhya se guna karein.
30 feet ki fence ke liye jahan har 8 feet par post hain, wahan 5 post hain (kinare ke post samet), jinke liye lagbhag 13 bag 80 pound premix chahiye.
Samanya post hole aakaar
4 inch vyaas chain-link ya picket fence ke liye line post ka standard hai. Gaddha bas post ko charo taraf concrete ke saath rakhne ke liye kaafi chauda hota hai.
6 se 8 inch vyaas adhikansh 4x4 fence posts aur mailbox posts ke liye kaam karta hai. Yeh sabse aam aavasiya post hole aakaar hai.
10 se 12 inch vyaas 6x6 posts, gate posts aur structural deck posts ke liye istemal hota hai. Atirikt chaudai zyada concrete aaytan aur adhik parashth sthirata pradan karti hai.
12 se 16 inch vyaas deck footings aur bade structural posts ke liye standard hai jinhen building code ki avashyaktaon ko poora karna hota hai.
Gaddha kitna gehra hona chahiye?
Nyuntam gehrai upayog aur aapki sthaniya frost line par nirbhar karti hai. Samshitoshn jalvayu mein fence post ke liye, 24 se 30 inch samanya hai. Gehri frost line wale thand mein, footing ko 36 se 48 inch ya usse adhik gehra hona pad sakta hai.
Deck posts ke liye, aapka sthaniya building code nyuntam footing gehrai nirdharit karta hai. Yeh vaikalpik nahi hai. Frost heave footing ko zameen se utha sakta hai agar woh frost line ke upar hai, jiska matlab hai ki poori deck sanrachna mausami jam-pighalne ke chakron ke saath hilti hai.
Fence posts ke liye ek samanya niyam hai ki zameen se oopar ki unchai ka ek-tihai zameen ke neeche hona chahiye. Ek 6 feet ki fence mein lagbhag 2 feet zameen ke neeche hota hai. Ek 8 feet ki fence mein lagbhag 2.5 se 3 feet zameen ke neeche hota hai.
Concrete bharne ka star
Gaddhe ko poori tarah upar tak na bharein. Grade se lagbhag 2 inch jagah chhodein taaki mitti concrete ko dhak sake. Yeh concrete ko nazar se chhupata hai aur paani ko samtal concrete ki satah par jama hone se rokta hai, jo jam kar oopari parat faad sakta hai.
Fence posts ke liye, concrete aamtaur par neeche ki or thoda chauda hota hai, jo upar uthne ka pratirodh karne wali ghanti ka aakaar banata hai. Yeh vaikalpik hai lekin sthirata badhata hai, khaaskar lambi ya hawa wale posts ke liye.
Chaukor banam gol gaddhe
Adhikansh post hole gol hote hain kyunki inhen auger se kiya jaata hai. Lekin chaukor gaddhe kabhi-kabhi bade footings ke liye ya form se pour karne ke liye istemal hote hain. Chaukor gaddhe ka aaytan calculation chauai x lambai x gehrai hota hai.
Ek 12 inch chaukor gaddha jo 36 inch gehra ho:
12 x 12 x 36 = 5,184 cubic inch = 3 cubic feet
Yeh 5 bag 80 pound premix hai, jabki usi vyaas aur gehrai ke gol gaddhe ke liye lagbhag 3.5 bag lagte hain. Antar chaukon ke aaytan badhne se aata hai.
Pre-mix banam site-mix
Kuch fence posts ke liye, premix bag vyavaharik vikalp hain. Aap sahi matra khareedte hain, ise thele mein ya gaddhe mein hi mix karte hain, aur post laga lete hain. Koi scheduling nahi, koi nyuntam order nahi, koi bacha hua concrete nahi.
Lambi fence line ya badi deck jaise kai posts wale project ke liye, truck se delivery wala ready-mix concrete zyada prabhavi ho sakta hai. Break-even point aamtaur par 5 se 10 cubic feet ke aas-paas hota hai, aapki sthaniya keemat par nirbhar karta hai.
Post hole concrete calculator gol aur chaukor gaddhon ke liye aaytan nirdharit karta hai aur ise bag counting ya ready-mix orders ke liye cubic yards mein badalta hai.
Sampadakiya Note: Is lekh ki satyata ki jaanch ki jaati hai aur ise niyamit roop se update kiya jaata hai. Sabhi gannayein maak udyog sutron ka upyog karti hain. Navitam frost depth data ke liye, apne sthaniya building vibhag se seedhe sampark karein.
Aksar Pooche Jane Wale Prashn
Fence post ke liye mujhe kitne bag concrete chahiye?
Ek standard 4x4 fence post ke liye 8 inch vyaas ke gaddhe mein jo 30 inch gehra hai, aapko lagbhag 2 bag 80 pound premix chahiye. 12 inch vyaas ke gaddhe mein 6x6 post ke liye, lagbhag 4 se 5 bag chahiye.
Fence ke liye post holes kitne gehre hone chahiye?
Adhikansh aavasiya fences ke liye, 24 se 30 inch gehra standard hai. Thand mein, frost line ke neeche gaddhe ko badhayein taaki heave roka ja sake. Ek samanya niyam hai ki oopar ki fence unchai ka ek-tihai zameen ke neeche hona chahiye.
Kya aap post hole mein sookha concrete daal sakte hain?
Haan, lekin yeh ideal nahi hai. Dry-pouring ka matlab hai concrete gaddhe mein daalne ke baad paani dalna, jo aksar asmanya mix aur void paida karta hai. Thele mein pehle se mix karke pour karne se zyada consistent set milta hai.
Concrete ke post ke aas-paas set hone mein kitna samay lagta hai?
Concrete 20 se 40 minute mein initial set prapt karta hai aur 24 se 48 ghante mein poora bal milta hai. Concrete ke set hone ke baad gaddhe ko backfill kar sakte hain, aamtaur par agle din.