什么是含粉基层料？

保留了细粉的碎石——石粉和小碎块会填满大颗粒之间的空隙，这正是它能压实成坚固基层的原因。洗掉细粉的净料则做不到。

57 号石料用在哪里？

用于排水。它经过水洗、约 19 毫米，空隙大、透水快，适合渗水盲沟和挡土墙背后。作为车道基层则是错误选择，因为它压不密实。

一立方码碎石有多重？

视级配约 2,700–3,600 磅。含粉基层料最重，每立方码约 1.8 吨；干净的 57 号约 1.4 吨。

碎石基层要做多厚？

露台或步道 10 厘米，住宅车道 15–20 厘米，黏土或软土地基还要更厚。厚度由下面的地基条件决定，而非固定规则。

碎石和砾石有什么区别？

碎石是机械破碎的，颗粒带棱角、能互相咬合；砾石由水流磨圆。带棱角的适合做基层，圆粒的会滚动。

级配碎石计算器

按级配计算碎石的吨数与立方码数——含粉基层料、57 号、411 号等——并采用各自实际的压实密度。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

石料级配

长度(ft)

宽度(ft)

厚度(in)

损耗百分比

每吨单价（选填）($)

Result

Crushed stone needed

11.3 tons

Volume

6.22 yd³

Weight: 22680 lb
Density used: 135 lb/ft³
Compaction lifts: 1 lift
Coverage: 480 ft²

Waste default: 5% — 5% 用于散落到边界之外以及留在车厢中的部分。

Diagram

Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.

公式

体积 ft³ = 长 × 宽 × (厚 in ÷ 12) × (1 + 损耗)   ·   吨数 = ft³ × 密度 ÷ 2000

参考资料

Measure what the tool asks for
This calculator works from 长度 in ft, 宽度 in ft and 厚度 in in. Measure the finished area you are covering, not the material — an estimate is only as good as the dimensions you feed it.
What it does with those numbers
体积 ft³ = 长 × 宽 × (厚 in ÷ 12) × (1 + 损耗) · 吨数 = ft³ × 密度 ÷ 2000 Every figure on the page comes out of that one expression, so you can check it by hand.
Why it adds 5% waste
5% 用于散落到边界之外以及留在车厢中的部分。
Choosing a 石料级配
提示：含粉基层料带有细粉填充空隙，因此能压得很实。57 号是水洗料：排水极好但永远压不密实，不能用作车道基层。
Where the numbers come from
The constants are taken from ASTM D448 — Standard Sizes of Aggregate for Road and Bridge Construction, ASTM D2940 — Graded Aggregate Material for Bases or Subbases and National Stone, Sand & Gravel Association — Aggregate specifications, linked in full below. If a figure here disagrees with your supplier's spec sheet, use the spec sheet — it describes the product you are buying.
What this will not tell you
This is a material takeoff, not a bid. It does not price labour, permits, delivery, equipment hire or site preparation, and it assumes a straightforward layout. Complex cuts, difficult access and awkward shapes all cost more than the geometry suggests.

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常见问题

把长、宽、厚（英尺）相乘，乘以该级配的密度再除以 2,000。12 × 3.7 米、厚 10 厘米的车道基层约需 10.8 吨。

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Cite this page

Cosyslabs. (2026). 级配碎石计算器. Rough Estimator!. https://roughestimator.com/zh/crushed-stone-calculator

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