Base en gravier pour dalles en beton: volume et poids
Calculateur de Base en Gravier pour Beton
D'abord la reponse: entrez les dimensions de votre dalle et l'epaisseur de la base. Obtenez les verges cubes et tonnes de gravier compacte.
Epaisseur de base recommandee
4 pouces (compacte)
Pour la plupart des dalles residentielles. Les sols argileux peuvent necessiter 6-8 pouces.
Compactage requis
95% de la densite Proctor
La base non compactee est la principale cause de dalles fissurees et affaissees.
Exemples de volume et tonnes de base en gravier
Use these examples as a supplier-call screen. The ton range is a planning range, not a ticket guarantee; ask the supplier for the density used for the exact clear stone, crushed stone, or road base product.
| Scénario de base | Écran de volume en vrac | Écran de plage de tonnes | Question au fournisseur |
|---|---|---|---|
| 3.33 yd3 clear stone | 3.33 cubic yards | about 4.3 to 4.8 tons | What tons-per-yard conversion does this quarry use for this clear stone? |
| 100 sq ft slab, 4 in base | 1.23 yd3 before buffer; 1.36 yd3 with 10% | about 1.8 to 2.0 tons with buffer | Is the base depth measured loose, compacted, or after final grading? |
| 10x12 shed pad, 4 in base | 1.48 yd3 before buffer; 1.63 yd3 with 10% | about 2.1 to 2.4 tons with buffer | Does the pad quote include excavation, compaction, geotextile, and haul-off? |
| 12x20 driveway apron, 6 in base | 4.44 yd3 before buffer; 4.89 yd3 with 10% | about 6.4 to 7.1 tons with buffer | Can the truck dump close to the work area without driveway or turf damage? |
Interactive workflow
Run the numbers, then save or export the project
Concrete base material decision checklist
Use this table before ordering stone or accepting a bid that bundles concrete, excavation, and base prep into one line.
| Signal to check | What it means | Next step |
|---|---|---|
| Area and base depth | Square feet or square meters times base depth gives the starting volume before waste or compaction. | Confirm whether the footprint includes over-excavation beyond the slab or pad edge. |
| Material type | Clear stone, crushed stone, road base, crusher run, and recycled aggregate can have different density and compaction behavior. | Ask the supplier for the product name, gradation, and tons-per-yard conversion used on the ticket. |
| Compaction and drainage | Base thickness after compaction may differ from loose delivered volume, especially when placed in lifts. | Clarify lift thickness, compaction responsibility, drainage correction, and whether geotextile is included. |
| Delivery access | Dump location, driveway protection, wheelbarrow distance, skid steer access, and cleanup can change the real cost. | Use the wheelbarrow or delivery cost calculators when base or concrete must be moved far from the truck. |
| Quote wording | A base line that says gravel included may hide material type, depth, compaction, haul-off, soil repair, and warranty limits. | Require the base scope in writing before comparing the lowest concrete bid. |
Related concrete planning tools
Move from a single calculation into a purchase, proposal, or pour-day decision with connected calculators and checklists.
Combien de gravier sous une dalle en beton?
Typiquement 4 pouces de gravier compacte. Pour une dalle de 10x10 pi, environ 1.2 vc de gravier.
Quel type de gravier utiliser?
Pierre concassee 3/4 pouce ou gravier de base propre. Evitez la terre ou le sable fin.
Pourquoi la base en gravier est-elle importante?
Elle assure le drainage, distribue la charge et previent l'affaissement.
Faut-il du gravier sur sol compacte?
Generalement oui. Le gravier offre un meilleur drainage que la plupart des sols.
Planning disclaimer
Les estimations de gravier sont a des fins de planification. Les conditions du sol affectent les besoins reels.