Update on latest performances and value creation opportunities for the Concrete Industry

Recent innovation in chemical admixtures

Author: B. Pellerin | Date: May 2017

Construction : some of the Key Evolution Drivers

2CONFIDENTIEL

Driver Impacts on CHRYSO Customers

Urbanization

More slump ret. needs / Concrete Transit issues Less room for jobsites (more pumps / less cranes) More Underground Construction & Mass

transportation More Vertical Construction (High Rise) Urban gardens waterproofing

Energy Cost concerns Building insulation Alternate energy plants construction & integration

in buildings (Windmills, Solar …)

Integrated Design & BOO

Reduce time to completion more pumps Sliding forms Precast

Maintenance free designs & materials Concrete Durability

Sustainable Development & Construction

More SCM More Manufactured aggregates Recycle (concrete, water …) COV, pollution … reduction

Concrete Raw Materials evolution

Aggregates quality changes :

More Manufactured aggregates

More clay pollution

More substitutes to traditional Portland :

SCM

“geo-polymers”

New clinkers

More variability cement chemistry :

More flexibility (grinding stations)

Change in kiln combustibles

Need for concrete recycling

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New Admixture Tools : Performance boosters and robustness enhancers

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Performance Base

Workability Retention

Performance Boosters

Slump Extenders

Robustness

Rheology EnhancersFinishability

Sustainabity & DurabilityTaylor solutions made to address

performance compromise

Placeability

Robustness Enhancers

Pumpability

Extended Workability Retention

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Workability extender = Dispersion is maintained

At will workability extension: No impact on finish set or early strengths

No impact on slump or mix design

CHRYSO®Equalis

0%

20%

40%

60%

80%

100%

120%

140%

160%

Slump retentionafter 90 mn

Finish Set (mn vs.control)

Mpa (24H vs.Control)

Control Retarder Equalis

Extended Workability Retention :New polymers

Extended workability yet no impact on finish set/early strengths : Dispersion extenders vs. retarders

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Long Transportation Time Long Placement jobsite Remote Plant or Jobsite

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Enhanced Placeability

Non Thixotropic modified Polymer Technology for WR

Controlling viscosity at low shear rates : enhanced placeability: Flawless finish

Time savings

Low viscosity yet cohesive & homogeneous concrete

Enhanced Placeability & Finishability :New polymers

Free Flow yet cohesive concrete : Low Thixotropy

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Congested reinforcement(WorldOne Tower – India)

High Pumpability(3rd Bosphorus Bridge – Turkey)

Labor/time intensive placement(Residential Slab - USA)

Superior Robustness :Cement Chemistry

Polymers more robust to cement chemistry changes :

Cement supply flexibility

Soluble Alkali content variations

…

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Low Sulfate Sensitive Technology = More flexibility

StdPCE

StdPCE

Low alkaliCement

High alkaliCement

DosageRate %

LSSLSS

Superior Robustness & Finishability:Use of coarse sand

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Rheology Robustness Enhancers: Allows for use of coarse sand (crushed or washed)

Eliminates bleeding

Improves concrete cohesion & finishability

Little to no impact on slump (no yield stress impact = not a VMA)

CHRYSO®Quad Technology

QuadStd

VMA

Concrete Viscosity

Std.VMA

Quad

Concrete Slump

Natural Sand Crushed & Washed

Crushed & Washed

50% 50%

100%

Everyday C25 Concrete

Ck content reduction per m3 of concrete

Higher cement replacement % but early strength/set required

Water reduction, slump retention and early strength together thanks to specific polymer & hydration catalysts

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Durability & Sustainability :Extensive use of SCM

EnviroMix® Technology

New Admixtures combination :The Tool Box

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Multiple products solution

Single Product solution

+

Water Reducer Robustness Enhancer

CHRYSO®Omega CHRYSO®Quad 20

CHRYSO®Premia

New admixture technologies : Few examples of implementation

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Make Money Example : High FiveDallas - USA

Technical Challenges :

$288 million project

>500,000 m3 of concrete

43 bridges & 710 Columns

SCC, S4 & S1 – up to 45 % fly ash

Ready Mix & Precast

The largest Texas Highway connector (I 75 and US 635) :

500 000 cars per day

Very congested

Bonus & Penalties:

$32 K / per early completion day

$100 K / extra hour of lane closure

Time Saving=

The Key Performance to be delivered on the job

Make Money Example : High FiveDallas - USA

CHRYSO offer totally focused on accelerating completion:

Product solutions (SPL, accelerators, curing agents …)

Concrete Mix designs (SCC, EnviroMix®, Turbocast® …)

Services (Concrete maturity equipment supply and personnel training…)

CHRYSO customers won the supply for the job based on time savings potential for Zachry

Make Money Example : High FiveDallas - USA

Results:

100% of concrete within specifications

Time Gain : 1 year early completion

Spending within budget (288 M$)

$11,2 millions “Fast Track” bonus paid to Zachry

Make Money Example : High FiveDallas - USA

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3rd Bosphorus BridgeIstanbul, Turkey

Mixed suspension-Cable laid Bridge:

2,2 km long (1,4 km between pierces) > 320 m high pierces 58 m wide deck (WW record) > 220 000 m3 of concrete

Technical challenges :

Air entrained concrete pumped over 300 m –120 years durability warranty

4H flat slump retention with hot temperatures

Blended Cement (50% GGBFS) low alkali

Compensated shrinkage & hydration temperature control

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3rd Bosphorus BridgeIstanbul, Turkey

CHRYSO Technical Solutions:

RoVeR CHRYSO®Serenis Concrete Maturity model and staff training

Performances delivered :

4 H flat slump retention and hydrationtemperature maintained within specifications

Low thixotropy = outstanding pumpability High early strengths & shrinkage reduction

(60%) Consistent air content & spacing factor

Few other examples

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Egypt : Ismailia Tunnel (2,5 km)

Panama : Atlantic Bridge (4,6 km)

La Réunion: New Seafront road (12,5 km)

Period : 2016-2018

CHRYSO®Premia 309

Period : 2016-2018

CHRYSO®Optima 145 & CHRYSO®Equalis 100

Period : 2015-2019

CHRYSO®Optima 145, CHRYSO®Quad, CHRYSO®Equalis …