Market overview

Calcium aluminate cement is a hydraulic binder made by fusing or sintering bauxite or alumina with limestone, giving monocalcium aluminate as the main phase. It is used in refractory castables, in rapid-setting tile adhesives, self-levelling screeds and repair mortars (often in ternary binders with Portland cement and calcium sulfate), and in sewer and wastewater linings. Supply rests on a few specialist producers whose output depends on bauxite or alumina quality, kiln or furnace capacity and energy cost.

The question this report answers
How large is CAC demand, how much of it comes from rapid-setting tile adhesives and ternary dry-mix binders, and is new capacity enough to serve growth to 2035?

1. Demand: who uses CAC and where it is growing

Refractories are the largest use, followed by building chemicals such as self-levelling screeds and rapid tile adhesives; Asia-Pacific takes nearly half of consumption (Future Market Insights).

Demand by application (share of 2025 consumption)
– Refractory castables and linings (steel, aluminium, cement kilns): 45% (Future Market Insights)
– Building chemicals: self-levelling screeds, rapid tile adhesives, repair mortars: 30% (Future Market Insights)
– Industrial and municipal utilities, incl. sewer and wastewater protection: 16% (Future Market Insights)
– Other (mining, oil and gas, technical uses): 9% (Market Krystal estimate)
Application shares follow Future Market Insights' published split, with the remainder assigned to other uses; Asia-Pacific share is Future Market Insights' figure and other regions are a Market Krystal estimate based on producer plant locations and export flows.

Demand by region (share of 2025 consumption)
– Asia-Pacific: 48% (Future Market Insights)
– Europe: 25% (Market Krystal estimate)
– North America: 15% (Market Krystal estimate)
– Middle East, Africa and Latin America: 12% (Market Krystal estimate)

Where demand grows fastest to 2035
– Ternary binders for self-levelling and rapid-set dry-mix: Construction is the largest end-use at 48.5% of the market, and China (6.8%) and India (6.3%) lead country growth to 2035 (Future Market Insights)
– Refractories for steel and aluminium: Almatis and u00c7imsa are pooling CAC 40-80 grades and exploring capacity growth to serve refractory makers (Almatis/u00c7imsa) (Almatis; u00c7imsa)
– Sewer and wastewater infrastructure: CAC is used for sanitation networks because of its resistance to aggressive environments (Imerys)

2. Supply: who makes CAC and how much

Imerys Aluminates, Calucem (Cementos Molins), u00c7imsa and Almatis lead outside China, with Chinese producers serving the domestic market. u00c7imsa raised its CAC clinker capacity to 197 kt/yr in 2026, which it says covers about 20% of consumption outside China (u00c7imsa).

Main producers and capacity
– Imerys Aluminates (incl. former Kerneos) (France): Fos-sur-Mer (Ciment Fondu, SECAR binders); Vizag, India at 30 kt/yr, planned 50 kt/yr by 2030 (Imerys)
– u00c7imsa (Tu00fcrkiye): 197 kt/yr CAC clinker at Mersin; about 90% exported (u00c7imsa (KAP disclosure))
– Calucem (Cementos Molins) (Spain/Croatia/Germany): Plants in Barcelona and Pula; USD 35 mn plant in New Orleans, Louisiana announced (Calucem)
– Almatis (Germany): High-alumina CAC 70 and CAC 80 grades for refractories

Production by region (share of 2026 output, Market Krystal analysis)
– China: 35%
– Europe (France, Spain, Croatia): 30%
– Americas and other: 13%
– India and rest of Asia: 12%
– Tu00fcrkiye: 10%

Trade and supply-demand balance
Europe and Tu00fcrkiye are net exporters, with u00c7imsa shipping about 90% of Mersin output to Northern Europe, the Americas and Asia-Pacific (u00c7imsa); North America and the Middle East depend on imports, which drives new US capacity (Calucem).

3. Value chain: from feedstock to end market

Bauxite (low-silica, low-iron) + Calcined or tabular alumina + Limestone → CAC → Refractory castables and linings (steel, aluminium, cement kilns), Building chemicals: self-levelling screeds, rapid tile adhesives, repair mortars, Industrial and municipal utilities, incl. sewer and wastewater protection

Raw materials
– Bauxite (low-silica, low-iron): Sets grade and colour of CAC 40-50 (Ciment Fondu type); quality supply is limited (Imerys)
– Calcined or tabular alumina: Main input for white CAC 70 and 80 refractory grades (Almatis)
– Limestone: Calcium source, low cost and widely available (Market Krystal estimate)
– Energy (fuel and electricity): Fusion or sintering is energy intensive; Imerys changed fuels and added emissions equipment at Fos-sur-Mer (Imerys)

Production route
Bauxite or alumina and limestone are fused in a furnace or sintered in a rotary kiln to CAC clinker, then ground; u00c7imsa reports capacity as CAC clinker (Imerys; u00c7imsa).

Downstream
CAC goes to refractory castable makers and to dry-mix formulators, who blend it with Portland cement and calcium sulfate into ternary binders for rapid tile adhesives, self-levelling screeds and repair mortars.

Price, cost and margin
CAC sells at a multiple of Portland cement; u00c7imsa cites an almost 15-fold value add from raw materials to CAC (u00c7imsa). No price reporter publishes a CAC benchmark; an indicative USD 700-900/t average across grades follows from publisher value and producer volume signals. Raw material and energy dominate cost, and margin sits with the producers: Calucem earned EUR 16 mn EBITDA on EUR 58 mn sales before its sale to Cementos Molins (Cementos Molins/Calucem, 2021).

Where the chain is tightest
Low-silica bauxite and high-purity alumina supply, together with a small number of specialist kilns, is the most constrained step.

Who sits where in the chain
– Cac producer: Imerys Aluminates, Calucem (Cementos Molins), u00c7imsa
– Alumina and cac: Almatis
– Cement group: Cementos Molins

4. Market size: what demand, supply and price add up to

Market Krystal preliminary estimate (2025)
Two publishers agree at USD 1.69-1.8 bn for 2024-2025 with about 5% growth (Global Market Insights, Future Market Insights); Global Industry Analysts projects USD 2.1 bn by 2030. Market Krystal anchors on the two agreeing publisher figures and checks them against u00c7imsa's statement that its 197 kt/yr capacity can supply about 20% of consumption outside China, which implies roughly 1 Mt/yr ex-China demand. With China added, an indicative average of USD 700-900/t across CAC 40 to CAC 80 grades supports the range. On this basis we use USD 1.5-1.9 bn. Confidence grade B: published estimates exist; the volume or price cross-check is partial.

How published estimates compare
Global Market Insights and Future Market Insights agree at USD 1.69-1.8 bn and about 5% growth, while Global Industry Analysts' 2030 figure implies a similar path. Market Krystal checks the published value against producer capacity and u00c7imsa's share of ex-China demand rather than relying on a single top-down split.

Key figures at a glance (third-party, cited)
– CAC market valued at USD 1.69 bn in 2024, growing over 5% a year to 2034 (Global Market Insights)
– CAC market USD 1.8 bn in 2025, reaching USD 2.9 bn by 2035 at 5.0% CAGR; refractories about 45% and building chemicals about 30% of consumption (Future Market Insights)
– u00c7imsa raised CAC clinker capacity from 131 kt/yr to 197 kt/yr and ranks third globally (u00c7imsa) (u00c7imsa (KAP))
– Imerys's Vizag plant in India produces 30 kt/yr of calcium aluminate binder, with plans for 50 kt/yr by 2030 (Global Cement)
– Calucem had EUR 58 mn sales and EUR 16 mn EBITDA when Cementos Molins agreed to buy it for EUR 150 mn, becoming the world's second-largest CAC producer (Cementos Molins)

5. Outlook to 2035 and scenarios to 2047

Regulation and substitution
Standards for refractories and sewer linings favour CAC; in dry-mix, sulfoaluminate (CSA) cements and accelerated OPC systems are the main substitutes.

Recent developments among key stakeholders
– Jul 2026: u00c7imsa commissioned a new CAC line at Mersin, raising annual CAC clinker capacity from 131 kt to 197 kt and tripling capacity since 2024 (u00c7imsa (KAP disclosure))
– Sep 2025: Almatis and u00c7imsa formed a strategic collaboration to market CAC 40-80 grades jointly, share supply chains and explore capacity expansion (Almatis; u00c7imsa)
– Apr 2025: u00c7imsa notified investors of its second CAC capacity expansion at Mersin, following its November 2024 notice (u00c7imsa (KAP disclosure))
– Nov 2024: u00c7imsa filed a KAP notice on its Mersin CAC expansion programme, which doubled capacity from 65 kt/yr to 131 kt/yr in 2024 (u00c7imsa; World Cement)

What this means for the market
Rapid tile adhesive and self-levelling screed producers gain supply options as u00c7imsa triples capacity and partners with Almatis. Imerys and Calucem face more price competition in CAC 40-50 grades in Europe and the Americas. Buyers should lock in multi-source contracts for ternary binder grades while capacity is growing.

Strategic scenarios to 2047
– Base: CAC grows about 4-5% a year, led by Asian refractories and dry-mix binders, with new Turkish and US capacity meeting demand.
– Constrained supply: Bauxite quality limits, energy costs or kiln outages tighten CAC 40-50 supply and raise prices for dry-mix users.
– Technology transition: Low-carbon cements and CSA binders take share in rapid-set dry-mix, while refractories keep CAC demand stable.
The swing factor for CAC is Steel output and refractory consumption in Asia. Signposts: u00c7imsa and Almatis capacity moves, Calucem US plant start-up, Imerys Vizag expansion, bauxite export rules, CSA cement adoption, steel production in China and India.

What this report delivers
Annual volume (tonnes) and value (USD) for 2026-2035, segmented by application: Refractory castables, Rapid-setting tile adhesives, Self-levelling screeds and ternary binders, Repair mortars, Sewer and wastewater protection; end use: Steel and aluminium, Cement and lime kilns, Building construction, Water and wastewater infrastructure, Mining and oil and gas; region: Asia-Pacific, Europe, North America, Middle East and Africa, Latin America. Each segment is backed by a producer capacity map, trade data and the Market Krystal estimate log, with scenarios to 2047 and strategic recommendations.