Concrete Pumping Calculator — Ebora Construction Engineering & Management

🏗️ Pump & Pour · Pipeline Pressure Estimator

Concrete Pumping Calculator

Size a concrete pump & pour. Enter the pour volume, the pump's output & efficiency, the pipeline geometry and the truck-mixer supply — get the actual output, pour duration & feasibility, an estimated required line pressure vs the pump's rating, and the mixers needed to sustain the pour — with a labeled pipeline schematic.

⭐ Free to compute · Balance … EP

① Pour & pump output

Pour volume V (m³)

Pump theoretical output Q_theo (m³/h)

Volumetric efficiency η (%)

Pump rated max pressure (bar)

Rated max pressure is indicative — typical trailer pumps ~70–130 bar, boom pumps vary by model. Enter your pump's value from its data plate / performance chart.

Target rate or available time

Target pour rate (m³/h)

② Pipeline geometry

Horizontal length L_h (m)

Vertical rise H_v (m)

90° bends (count)

Reducers (count)

Flexible hose length L_hose (m)

Pipe inside diameter (mm)

③ Concrete & truck mixers

Slump (mm)

Unit weight ρ (kg/m³)

Mixer drum capacity (m³)

Mixer round-trip cycle (min)

These are INDICATIVE defaults for a rough estimate. Tune them to your pump's chart, pipe size, slump and mix. They are not design values.

Friction gradient (bar / 100 m)

~5–15 bar/100 m typical for a 125 mm line; depends on output, diameter & slump.

Vertical equiv. k_v (m pipe / m rise)

Friction-equivalent only — static head is added separately.

90° bend equiv. k_bend (m / bend)

Reducer equiv. k_red (m / reducer)

Hose equiv. k_hose (m pipe / m hose)

🏗️ Pump & pour results

⚠️ Estimates only. The friction gradient and equivalent-length constants are indicative. Always verify the required pressure against the actual pump's performance chart and your concrete's pumpability (slump, aggregate size, mix design). Do not use these numbers as final design values.

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Pump & pour estimate

Actual output Q_act

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Pour duration

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Feasibility

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Equivalent length L_eq

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Friction ΔP_fric

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Static head ΔP_static

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Required pressure P_req

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Mixers to sustain

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Pumps needed

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