Lighter than water. Stronger than the standard.

AIWON AAC blocks are three-quarters air, so they float. Independent NABL labs measured an average 4.85 N/mm² where IS 2185 asks for 4.0. Made by Brickcem on a fully automatic line in Kapadvanj, Gujarat.

Get a quote See the lab results

A real-size AIWON block, 600 × 200 × 150 mm, at the density the labs measured. Drag it under and let go — or drop a red brick next to it.

Three-quarters of every block is air.

In the mixer, a pinch of aluminium powder reacts with lime and cement and lets off hydrogen. The wet mass rises like bread, millions of closed cells form, and high-pressure steam turns the cake to stone. The air stays locked inside — that is what keeps heat out, keeps the weight down, and keeps a block afloat.

630kg/m³

Average dry density in independent lab reports — a third of a red clay brick.

0.17W/m·K

Average thermal conductivity. Red clay brick is around 0.81.

4.85N/mm²

Average compressive strength. IS 2185 Grade 1 asks for 4.0 at this density.

This is a sawn AIWON face under a low light. Move across it and the light follows.

One wall, two AIWON products

The block and the mortar are designed together: a true-to-size block, laid on a 3 mm joint that is stronger than the block it holds.

600 × 200 mm face, 75 to 300 mm thick
IS 2185 (Part 3) Grade 1, BIS licence
Sand base and fly-ash base
±2 mm from an automatic gantry

Sizes, weights and specification

A 3 mm AIWON Bond joint between two AIWON blocks

3 mm joints instead of 10–15 mm
No water curing; plaster after 24 hours
110–120 sq ft of 150 mm wall per 40 kg bag
Ready-mixed: add water only

Coverage, mixing and laying

The afternoon test

A west wall in Ahmedabad in May. The sun reaches it at noon and the face heats past 55 °C. Slide through the day and watch the heat travel through a 230 mm brick wall and a 200 mm AIWON wall into a room cooled to 26 °C.

Time of day

5:00 pm

Air 41 °C

midnight6 amnoon6 pmmidnight

Red brick, 230 mm

—°C on the room side

— W of heat into the room per m²

AIWON, 200 mm

—°C on the room side

— W of heat into the room per m²

West-facing wall in your home, m²

Heat the AC must remove in a day: — kWh through brick, — kWh through AIWON.

—

less heat through the wall — about — units of electricity over a 100-day summer with an ordinary AC.

How this is worked out: heat flow through a single-material wall, calculated every few seconds over four days until the days repeat. Air 28–42 °C, afternoon sun on a mid-grey face, room held at 26 °C, AC efficiency 3. Brick 1,900 kg/m³ and 0.81 W/m·K; AIWON 630 kg/m³ and 0.19 W/m·K, as measured. Plaster, shade and colour change the numbers for a real house, not which wall wins.

Measured, not promised

The average of independent NABL-accredited lab reports, against the limits IS 2185 sets. The green band is where the standard wants the result; the dot is AIWON.

Six stamps in the passport

Every AIWON block travels on the same papers: a BIS licence to IS 2185, the CII GreenPro ecolabel, three ISO management systems and IGBC membership. We show them as stamps — tap one and the original is a click away.

Open the passport and lab results

Not all AAC is the same AAC

Most AAC in the market is made on mixed or semi-manual lines, where the result depends on who is on shift. Brickcem was built to remove that guesswork.

	AIWON by Brickcem	Typical AAC supplier
The line	Fully automatic KEDA Suremaker line with Forbes Marshall steam and autoclave control	Mixed or semi-manual machinery
Raw material	Bulk silos, measured feed ratios, no hand-batching	Manual feeding, batch-to-batch variation
Cutting	Automatic gantry, ±2 mm — inside the ±3 mm IS 2185 allows on height and thickness	Wider spread, thicker plaster to hide it
Proof	Independent NABL lab reports, plant lab testing every control unit, test certificates anyone can check online	Limited validation
Systems	BIS licence, GreenPro, ISO 9001, 14001 and 45001	Informal controls
What you buy	A wall system: AIWON blocks with AIWON Bond, made for each other	Blocks only; joint mortar mixed on site

Predictability is engineered

Five stations, one programme, no shortcuts. The plant at Salod, Kapadvanj was built as a manufacturing system, not an assembly operation.

The main production hall at the Brickcem plant: cutting gantries, moulds and autoclaves — The production hall at Salod: moulds on the left, the cutting line in the middle, finished AIWON blocks stacked at the back.

Raw materialFly ash and sand in dedicated storage, fed in measured ratios.
MixingKEDA dosing and mixing to a fixed recipe, every batch.
CastingThe slurry rises in the mould as the air cells form.
Precision cuttingWires cut the green cake to size on an automatic gantry.
AutoclavingHigh-pressure steam curing, controlled by Forbes Marshall systems.