System comparison — screening only, not project design

152 mm ICF core vs concrete masonry

A standalone comparison of calculated structural values for the selected Nudura reinforced core and fully-grouted block. It does not read, change, or check a saved project.

Engine ready

Engineer's-review and system-comparison aid — not a structural design, producer statement, or compliance determination.

Decision context

What is the wall doing?

This groups relevant screening measures; it does not rank them or calculate project utilisation.

Standalone inputs only. This page does not load or save project actions and does not calculate project utilisation.

Pilaster width mm · 400 minimum

A standalone comparison lever only; final size and reinforcing are engineer-selected.

ICF 6-inch · 152 mm core

ICF form / concrete core

The 4″ core is naturally compared with 20-series block; the 6″ core is the 25-series comparison.

Vertical bar Grade 500

Vertical spacing design point

406 mm

Spacings follow the 203 mm form module (406, 203). A 200 or 400 mm setout is laid to the same module in the field.

Bar position out-of-plane

Two curtains are available in the 6″, 8″ and 10″ cores.

Core concrete f′c MPa

Maximum concrete aggregate mm

Standalone ICF concrete input; it is not copied from a saved project.

Fully-grouted masonry

Block series

Masonry f′m MPa

Masonry observation type

Masonry bond pattern

Filled block weight kg/m²

The block uses the same bar diameter and spacing as the ICF input. Masonry is fully grouted.

Strength-adjusted material index

— mm-equiv

Context only; not a design-capacity check

Wall mass comparison

— % lighter

Published/entered mass values

Out-of-plane design shear

— kN/m

ICF φVn; matched masonry value is in the table

What the current calculations establish

Assessing

Capacity levers to review

Standalone system-comparison context

Raw comparison by measure

Swipe sideways to compare every value.

Measure	ICF 152	Block	Calculated difference

Screening values — not design capacities

These values omit strength reduction factors, slenderness and eccentricity. NZS 4229 puts the prescriptive axial limit for comparable walls at 57–148 kN.

Swipe sideways to compare every screening value.

Screening measure	ICF	Block

Out-of-plane moment-capacity detail

This expands one raw-capacity row. It does not represent overall wall performance or the highest project utilisation by itself.

ICF central ICF offset ICF two curtains Block

Read this before quoting a number

Axial is a nominal squash comparison. It does not include slenderness, minimum eccentricity, or second-order effects.
Out-of-plane shear is a matched raw-capacity comparison. Both values exclude shear-reinforcement contribution; the masonry value uses zero beneficial axial compression. Project shear demand and both systems’ in-plane shear remain outside the utilisation screen.
Deflection and serviceability are not checked. This standalone comparison does not evaluate project actions or utilisation.
Bar position is idealised. A real Nudura form constrains placement to its web nodes.
Two curtains add steel. They use roughly twice the vertical reinforcing steel; the gain is not produced by merely staggering the same steel.
In-plane seismic capacity is outside this comparison. The masonry capacity-design multipliers are reserved for reviewed future work.