How polymers improve concrete floors

11 A very simple method of benchmarking of overlays

12 Protection against impact and chemical attack as a function of strength and layer thickness

13 The future: chemistry and robotronics

How polymers improve concrete floors
Possibilities today and prospects for the future - a pragmatic approach to the limitations of concretes

by Dipl.-Chem. Dr. Peter Seidler

5^th International Colloquium Jan 21-23, 2003

11 A very simple method of benchmarking of overlays

At the ICPIC Workshop held in Bled (Slovenia) in 1996, the problem of the lack of transparency in the market for repair mortars was addressed. The discussion led to a "EUREKA" project in which A. Zajc and collaborators (IRMA/Slovenia), N. Swamy (University of Sheffield/UK), and astradur Industrieboden AG (Rodalben/Germany) were participating. First of all, a matrix was developed for comparing materials, which is now also being discussed by the RILEM Technical Committee TC 184. RILEM is the international union of major materials testing institutes. The matrix with 67 items, which is also suitable for use in benchmarking, is shown in table 8:

1 Designation Product 1 Product 2 Product 3

2 Main characteristics
Basis (composition)
Solvent
Use
Components

Fibers (% by weight)

Thickness, min
Thickness, max
Density

Price per kg (max package)
Price per L (max package)
Average (Ø) thickness

Price per m² (Ø thick: material)

Price of application per m²

Setting time

Layers, min
Primer
Waiting time 1, min (20°C)
Waiting time 1, max (20°C)
Levelling
Waiting time 2, min (20°C)
Waiting time 2, max (20°C)
Topcoat (sealing)

Abrasion
Testing method
Strength (4*4*16) N/mm²

Package, max

3 Other technical data Quality system Flow behaviour Testing method
Outdoor use
Wet substrate
Filling, min
Filling, max
Aggregate grain, min
Aggregate grain, max
Cleaning instructions

4 Safety data sheet
Health hazards
Symbol(s)
R- and S-sentences
Transport prescriptions

5 Application
Surface per hour and worker
Mixing on site

6 References
Start of production
Object reports

7 Sources of knowledge
Last Date
Technical data sheet
Safety data sheet
Label(s)
Instructions for application (video)
Instructions for cleaning
Instructions for maintenace

8 General properties
Skid proofness
Package, min
Temperature min
Temperature max

Characterisation (fingerprint)

9 Samples
Before setting (1 kg)
After setting (4*4*16) max filled

Table 8: Matrix of material properties and other important data of impregnations, coatings, overlays and top coats

Last Update: Jan 29, 2003

0 Abstract 1 We have all the means for better concrete 2 History of mortars and concretes 3 Costs of an industrial concrete floor 4 The meaning of "strength" and "resistance" 5 Some shortcomings of concrete 6 Miracles made of concrete, but not for industrial floors 7 Special cements for industrial floors with no shrinkage 8 Problems caused by cementitious overlays 9 What reaction polymers can achieve, at a cost 10 Improvements with polymer dispersions 11 A very simple method of benchmarking of overlays 12 Protection against impact and chemical attack as a function of strength and layer thickness 13 The future: chemistry and robotronics 14 References		How polymers improve concrete floors Possibilities today and prospects for the future - a pragmatic approach to the limitations of concretes by Dipl.-Chem. Dr. Peter Seidler 5^th International Colloquium Jan 21-23, 2003 11 A very simple method of benchmarking of overlays At the ICPIC Workshop held in Bled (Slovenia) in 1996, the problem of the lack of transparency in the market for repair mortars was addressed. The discussion led to a "EUREKA" project in which A. Zajc and collaborators (IRMA/Slovenia), N. Swamy (University of Sheffield/UK), and astradur Industrieboden AG (Rodalben/Germany) were participating. First of all, a matrix was developed for comparing materials, which is now also being discussed by the RILEM Technical Committee TC 184. RILEM is the international union of major materials testing institutes. The matrix with 67 items, which is also suitable for use in benchmarking, is shown in table 8: 1 Designation Product 1 Product 2 Product 3 2 Main characteristics Basis (composition) Solvent Use Components Fibers (% by weight) Thickness, min Thickness, max Density Price per kg (max package) Price per L (max package) Average (Ø) thickness Price per m² (Ø thick: material) Price of application per m² Setting time Layers, min Primer Waiting time 1, min (20°C) Waiting time 1, max (20°C) Levelling Waiting time 2, min (20°C) Waiting time 2, max (20°C) Topcoat (sealing) Abrasion Testing method Strength (4416) N/mm² Package, max 3 Other technical data Quality system Flow behaviour Testing method Outdoor use Wet substrate Filling, min Filling, max Aggregate grain, min Aggregate grain, max Cleaning instructions 4 Safety data sheet Health hazards Symbol(s) R- and S-sentences Transport prescriptions 5 Application Surface per hour and worker Mixing on site 6 References Start of production Object reports 7 Sources of knowledge Last Date Technical data sheet Safety data sheet Label(s) Instructions for application (video) Instructions for cleaning Instructions for maintenace 8 General properties Skid proofness Package, min Temperature min Temperature max Characterisation (fingerprint) 9 Samples Before setting (1 kg) After setting (4416) max filled Table 8: Matrix of material properties and other important data of impregnations, coatings, overlays and top coats
Last Update: Jan 29, 2003