How to achieve DM2 concrete floor.

Below videos are Copyright © Teesin Machinery Pte Ltd

How to power trowel a concrete floor.

Below videos are Copyright © Multiquip Inc.

How to finish concrete floor power trowel

How to setup Laser Screed.

Below videos are Copyright © HIKING Laser Screed & Copyright ©Conmec Engineering Co., Ltd

Setting up the laser screed leveling system

How to do concrete shotcreting.

Below videos are Copyright © IMER GROUP

Imer Prestige concrete pumping

How to do pressure grouting & mortar spraying.

How to do pressure grouting 

IMER STEP-120 set-up for grouting

IMER STEP-120 set up for mortar spraying

How to use Pentruder Wire Saw 3P8 for Demolition Job.

Below video are Copyright © Teesin Machinery Pte Ltd

Speaker: Mr. Frankie Chan

How to use a concrete paving breaker.

Paving Breaker

How to do a core drilling.

Wet core drilling using Shibuya AFS system

Dry core drill using BAIER system

How to remove epoxy & waterbase coating.

Below videos are Copyright © Teesin Machinery Pte Ltd

How to do concrete surface preparation.

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

Lesson 1-Introduction

How to do floor polishing

Below videos are Copyright © Klindex S.R.L.

Countertop polishing-UFO

How to polish wood parquet

How to do floor grinding

Below videos are Copyright © Fujian Xingyi Polishing Machine Co., Ltd

How to grind & polish concrete floor

How to grind terrazzo

How to grind & polish marble

Demonstration of CIMAR grinder at Changi Airport Jewel Project

How to install self-levelling screed

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

Lesson 1

Lesson 3

Lesson 2

Lesson 4

How to polish self-levelling screed

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

Lesson 1

Lesson 3

Lesson 5

Lesson 2

Lesson 4

Lesson 6

Lesson 7

Epoxy Flooring Know-How

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

How to protect metallic epoxy coatings

Epoxy coating for garage floor & basement

Epoxy coating for home improvement

Epoxy coatings for restaurants and clubs

Epoxy coating for office & art galleries

How to install metallic epoxy coating

How to install self-levelling epoxy coating

How to install resin chip floor coating

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris


Lesson 1

Lesson 2

How to install decorative quartz flooring

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

Lesson 1

Lesson 2

Lesson 3

Waterbase & urethane coatings,sealer

Below videos are Copyright © Duraamen Engineered Inc.

Speaker: Mr. Bob Harris

How to install urethane concrete system

How to repair cracks in concrete

How to avoid roller marks during sealing

How to install water based floor coating

How to apply water based acrylic sealers

How to install concrete micro topping

How to install elastomeric parking deck

Selecting  Floor Preparation Equipment

Nine Grades of Surface Roughness


Acid Etched


Medium Shotblast




Medium Scarification


Light Shotblast


Heavy Abrasive Blast


Light Scarification




Heavy Scarification

The most effective reference tool for determining concrete surfaces profile is the moulded rubber comparator chips, available from the international concrete repair institute. These samples replicate nine grades of surface roughness and designed for direct visual and tactile comparison to the concrete surface in question. There is no definitive text description for the nine grades.


Shotblasting propels steel shot against the concrete surfaces by means of a wheel. The impacts of the shot pulverize concrete and roughen the surface. Shotblasting is a preferred method for cleaning and profiling horizontal surfaces and has same applications as abrasive blasting.


A scarifier consists of rows of toothed washers assembled on steel rods that are mounted to a rotating steel drum. As the drum spins, the washers strike the surface, fracturing and pulverizing concrete and producing a striated pattern. Scarifier only works on horizontal surfaces.


Scabblers feature multiple pointed piston heads, pneumatically driven that pound the surface, chipping and crushing it. They produce coarse, irregular surfaces and are often used to demolish high-spot concrete debris.


Grinding removes protrusions, surface contaminants and produces a smooth or polished surface, depending on the roughness of the abrading discs. The disc is moved at right angles to the surface and may leave circular patterns or gouges in the surface.

Hammers with different heads can be fitted for various purposes, such as removing residues or even breaking up concrete or sandstone. Because they are not really designed for removing the concrete surface, a CSP number is not relevant to their operation.

Acid etching of the concrete floor is mainly used for light-duty removal of weakly bonded laitance layer. The acid etching does not remove surface contaminants, which must be removed before the acid etching process.

Selection of Diamond Blades & Segment

How the Diamond Blade Works.


Diamond blades do not really cut, they grind the material through an action of friction with the synthetic diamond bonding matrix. The diamond crystals, often visible at the leading edge and sides of the rim/segment, remove material by scratching out particles of hard, dense materials, or by knocking out larger particles of loosely bonded abrasive material. This process eventually cracks or fractures the diamond particle; breaking it down into smaller pieces. As a result of this phenomenon, a diamond blade for cutting soft, abrasive material must have a hard metal matrix composition to resist this erosion long enough for the exposed diamonds to be properly utilized. Conversely, a blade for cutting a hard, non-abrasive material must have a soft bond to ensure that it will erode and expose the diamonds embedded in the matrix. These simple principles are the foundation of “controlled bond erosion”.

When using a DRY blade, the user must be aware of distinct operating practices to ensure optimum performance. DRY cutting blades require sufficient airflow about the blade to prevent overheating of the steel core. This is best accomplished by shallow, intermittent cuts of the material along with periods of “free-spinning” for several seconds to maximize the cooling process.


During wet cutting operations, liberal amounts of water act as a coolant to sup-port the cutting effectiveness and longevity of the WET blade. Additionally, using water adds to the overall safety of cutting operations by keeping the dust signature down.


Four essentials must be known  about  the  concrete  to  determine  proper  diamond blade selection.:

1. Compressive Strength (hardness of the concrete)

2. Age of the Concrete

3. Aggregates and Sand

4. Steel Reinforcement 

Choose the correct diamond segment for cutting floor

Soft Concrete Floor


Hard Bond Diamond Segment

Medium Concrete Floor


Medium Bond Diamond Segment

Hard Concrete Floor


Soft Bond Diamond Segment

Extra Hard Concrete Floor


Very Soft Diamond Bond Segment

Choose proper metal plate segment for grinding floor

Segment Quantity Single

For Grinding Hard Floor

Segment Quantity Double

For grinding Common Floor with cutting

Segment Quantity Three or more

For grinding Common Floor with higher grit

Grit of Diamond Segment

#30 or less - Levelling Grinding

#60-#80-Rough Grinding
#120-#150-Fine Grinding

Diamond Metal Plate Segment For Removing Thick Coating Material :-

Diamond Metal Plate Segment For Removing Thin Coating Material :-

Setting the correct rpm of floor grinder for coating removal

What is the difference between speed and torque?

Speed: The speed of a motor, at its most basic form, is the rate at which the motor spins. Torque: The torque output of a motor, at its most basic form, is the amount of rotating force the motor develops. The torque of an electric motor is measured in pounds per force inch or lb-in.

What is the difference between speed and torque?


So more the torque, less is the angular speed required for the same rate of work consumption. If the input power is constant, torque and angular speed become inversely proportional. Only then does the angular speed decreases as the torque increases. When angular speed of the motor increases, the torque(rotating force) of the motor decreases and vice versa.

Speed, Torque and Horsepower

Relationship between speed, torque and horsepower.

Ceramic tile adhesive removal​

Rotational Speed

800-1,500 rpm

Carpet glue removal

Rotational Speed

800-1,500 rpm

Epoxy paint removal

Rotational Speed

1,200-1,500 rpm

Rain damaged concrete

Rotational Speed

1,200-1,500 rpm

Smoothen exposed aggregate

Rotational Speed

1,200-1,500 rpm

Lippage removal in terazzo/stone tiles

Rotational Speed

800-1,200 rpm

Concrete floor levelling with metal segment #16-#80

Rotational Speed

800-1,200 rpm

Cleaning after grouting procedure

Rotational Speed

300-500 rpm

Floor polishing with resin pad #50 - #100

Rotational Speed

1,250-1,950 rpm

Floor polishing with resin pad #400-#3000

Rotational Speed

1,500 - 1,950 rpm