Ready Mix Plaster

Instant Plastering Mega Crete Ready-Mix Plaster is manufactured in modern dry mix plant with computerised batch process.

Plaster is ready to use by just mixing water at site. This process eliminates job-site mixing practices. Hence it gives consistent quality with required sand mesh sizes in exact proportion which is most important for compactness of plaster.

Further to have desired workability, less rebounding losses, required slump properties and overall durability, polymers are added in Mega Crete Ready-Mix Plaster.

What is plastering? Plastering is the process of covering rough surface of wall, column, ceiling and other parts of the building with thin coat of mortars to form a smooth, hard and durable surface capable of protecting external surface against penetration of rain water and other atmospheric vagaries.

A good plaster needs to have strong adhesion on wall and ceiling with excellent water resistant, crack free and work ability properties that will protect the interior, provide flat base for painting, minimise the inconvenience of maintenance and speed up the construction. Therefore, in many ways, Plastering is as critical as structural members, brickwork, flooring, etc.

Details

Compact plaster, reduce void gaps
Negligible silt content
Reduces rebounding
Highly durable plaster that cuts repair the maintenance cost
Excellent work ability and good adhesion on various substrate
Paint finish and life of paint are enhanced

Application Procedure

The substrate needs to be cleaned and made free from grease and loose particles. The porous and absorbent substrates need to be pre-wetted prior to application of Mega Crete Ready-Mix Plaster to prevent premature loss of water from the plaster. This will ensure that thin layer can be applied without cracking problems and proper cement hydration and adherence of the mortar to the substrate is attained. Use 7-8 liters of water for 40 kg Mega Crete Ready-Mix Plaster. Pour the Mega Crete Ready-Mix Plaster while mixing for 4 -5 minutes with hand or still better with a mechanical mixer to achieve a good consistency. Do not over mix. Allow mixture to stand for 2-3 minutes for additives to dissolve. Re-mix again for about 2 minutes, plaster is ready for use. Apply plaster to the substrate, using some pressure while finishing with a steel trowel or wooden float to ensure optimum bonding of the plaster to the substrate surface. Mega Crete Ready-Mix Plaster can be used for interior as well as exterior wall.

Specifications

TEST	TEST METHODS	SPECIFICATION
SETTING TIME: Initial	IS: 4031 PART - 5: 1988	>=30 min
SETTING TIME: Final	IS: 4031 PART - 5: 1988	<=600 min
PULL OFF ADHESION: 10mm thick on concrete. Storage 7 days in polythene bag @23�C + 7 days @ 23� C with 50% R.H.	ASTM 4541 & EN 1015-12	Min 0.3 Mpa
WATER RETENTIVITY	EN 1015-8	Min 95%
COMPRESSIVE STRENGTH:	EN 1015- 11:1999	As per EN 998 - 1 for categories (N/MM2)
2 day in mould + 5days in polythene bag + 21 days @23 degree C with 50% R.H.		CS I - 0.4 TO 2.5
		CS II - 1.5 TO 5
		CS lll - 3.5 TO 7.5
		CS IV - >6+
		Polymers already added, results in overall durability
FLEXURAL STRENGTH:	EN 1015- 11:1999	Min 1.8 Mpa
2 days in mould + 5 days in polythene bag + 21 days @23� C with 50 % R.H.
CAPILLARY WATER ABSORPTION	EN 1015- 18	As per EN 998 � 1
		WO no requirements
		W1 C <= 0.40 kg/m2.min0.5
		W2 C <= 0.20 kg/m2.min0.5

PERFORMANCE PARAMETERS	JOB-SITE PLASTER	Mega Crete Ready-Mix Plaster (RMP)
PENETRATION OF RAIN WATER	Large particle sizes (>3 mm) sand leads to porous surface and gives easy access to rainwater.	Different grade of sand used in exact proportion ensuring compactness in plaster.
ADHESION	High silt and chloride content in sand impedes adhesion properties in mortar, causing high de-bonding losses.	Negligible silt and organic matter free plaster ensure strong adhesion and durability.
DE-BONDING LOSSES	High	Negligible
SMOOTHNESS	Not so smooth	Smooth and hard surface provides aesthetic base of plaster to work upon.
CRACK FORMATION	Due to practical on site mixing practice, chances of crack formation is more.	(RMP) produced at automated dry mix plant. Chances of is very negligible subjected to proper curing and application.
WATER: CEMENT RATIO	Due to presence of moisture in sand it is not possible to determine exact quantity of water to be mixed.	Due to dry sand used, water cement ratio is easily maintained and full strength of plaster is obtained.
GRADING OF SAND	No grading	(RMP) has graded sand which results compactness of plaster.
CEMENT: SAND RATIO	Mistake may occur at job site mix	Sand cement ratio is maintained as (RMP) is made in automated plant.
PLASTER THICKNESS	Reducing of plaster is not possible.	Can be reduced up to 25% keeping the required strength.
POLYMER MODIFICATION	Polymer modification difficult as it involves multiple polymers and doses	Polymers already added, results in overall durability