EnviroAdd® HWR - Superior Water Demand Reducers for Cement

EnviroAdd® HWR
Superior water demand reducers

Build with less water

 

Part of the next-gen activators range for cement producers, EnviroAdd® HWR is tailored to maximise CO2 reduction while preserving or exceeding current quality benchmarks.

Reduce water demand •  Lower CO2  •  Enhance workability properties on mortar & concrete  •  Improve strength

water reducer

Up to 18% water to cement ratio reduction

without compromising workability on concrete.
early-age/late strengh increase

+50% early-age / +30% late strength in concrete

recovers strength deficit from novel scms.
workability retention

-10% slump
losses

on self-levelling concrete
Cement additives

Stable
at 90–110°C

survives hot-grinding mill conditions reliably.
Cement Composition

Accelerates adoption of
challenging SCMs

optimized for calcined clay, natural pozzolan, cdw & limestone systems.
reduce co2 emissions

CO2
reduction

enhanced scm substitution efficiency
Download the EnviroAdd® HWR Flyer
Performance rating Concrete Mortar
Grinding performance ★★★☆ ★★★☆
Early-age strength ★★☆☆ ★★☆☆
Late-age strength ★★★★ ★★★★
Water demand reduction ★★★★ ★★★☆
Workability / slump retention ★★★★ ★★★★
SCM compatibility ★★★★ ★★★★
EnviroAdd® HWR Superior water demand reducers - Build with less water

SCM adoption at scale

EnviroAdd® HWR is engineered for the full spectrum of supplementary cementitious materials – including the most challenging low-reactivity sources – maximizing clinker replacement without compromising strength or workability.

Natural
pozzolan
Unlocking
low reactivity

Calcined
clay
Managing high water demand

Lime-
stone
Enabling high substitution

Fly
ash
Boosting
early strength

Slag
(GGBS)
Enhancing grinding efficiency

Recycled
fines
Stabilizing variable quality

Case study 1: Calcined Clay

USA

Constant water to cement ratio

Status

  • Cement Type: CEM 1P with 35% Calcined Clay
  • EnviroAdd® HWR Dosage: 3,600 ppm | Equal concrete admixture
At reduced W/C ratio -8% (0.5 → 0.46) Constant flow maintained. Delivered +15% compressive strength at 28d vs reference

Results

  • EnviroAdd® HWR unlocks on average +20% strength gains while preserving workability for a long period, retaining 200 mm slump at 60 minutes.
EnviroAdd® HWR preserves workability for a long period, retaining 200 mm slump at 60 minutes.

Key Performance Metrics
-Calcined Clay

Quantified impact of EnviroAdd® HWR on USA case study

KPI

+3K%

SLUMP RETENTION AT 60 MIN VS. REFERENCE

+22%

28-DAY COMPRESSIVE STRENGTH +13MPa

+18%

1-DAY COMPRESSIVE STRENGTH +4MPa

Case study 2: Limestone

Panama

Reduced water to cement ratio • Constant flow

Status

  • Cement Type: HE; Clinker(88.7%); Limestone + Basalt(7.3%); Gypsum (4.0%)
  • EnviroAdd® HWR Dosage: 2,000 ppm

Results

  • W/C ratio reduced by 12.3% (0.65 → 0.57) at constant flow
  • 1 day strength: +52% vs reference
  • 7 days strength: +19% vs reference
  • 28 days strength: +30% vs reference
  • Clinker factor reduced by 2.5%.
concrete strength gains with EnviroAdd® HWR on Panama case study

Key Performance Metrics
-Limestone

Quantified impact of EnviroAdd® HWR on Panama case study

KPI

+52%

1-DAY COMPRESSIVE STRENGTH +4.4MPa

+30%

28-DAY COMPRESSIVE STRENGTH +7.4MPa

+12%

W/C RATIO REDUCTION → SAME WORKABILITY

Case study 3: Limestone-Quartz System

Turkey

Reduced water to cement ratio & Constant water to cement ratio

Status

  • Cement Type: CEM II/A-LL 42.5R [10% limestone, 5% quartz]
  • Objective is to convert into CEM II/B with a clinker factor reduction & improve workability and slump retention
  • EnviroAdd® HWR Dosage: 1,500 ppm – dosed inside the ball mill, benchmarked against a pure accelerator baseline
At fixed W/C ratio, Initial flow increased by +30%. Delivered +7% compressive strength at 28d vs reference

Results

  1. At reduced W/C ratio -8% (0.5 → 0.46)
    • Constant flow maintained.
    • Delivered +15% compressive strength at 28d vs reference
  2. At fixed W/C ratio,
    • Initial flow increased by +30%
    • Delivered +7% compressive strength at 28d vs reference
  3. Clinker factor reduced by 8%.
At reduced W/C ratio -8% (0.5 → 0.46) Constant flow maintained. Delivered +15% compressive strength at 28d vs reference

Key Performance Metrics
-Limestone-Quartz

Quantified impact of EnviroAdd® HWR on Turkey case study

KPI

+30%

FLOW INCREASE AT CONSTANT W/C (0.5)

+15%

28-DAY COMPRESSIVE STRENGTH +7 MPa

-8%

W/C RATIO REDUCTION → SAME WORKABILITY

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