am S40

Short description:

AM S40 ready-to-use superplasticizer
admixture is based on Sulfonated
naphthalene-formaldehyde. AM S40
superplasticizers is to produce flowing
concrete with very high slump in the range
of 7-9 inches (175-225 mm) to be used in
heavily reinforced structures and in
placements where adequate consolidation
by vibration cannot be readily achieved.
The other major application is the
production of high-strength concrete at
w/c’s ranging from 0.3 to 0.4. The capability
of these superplasticizers to reduce water
requirements 12-25% without affecting the
workability leads to production of highstrength concrete and lower permeability.
Compressive strengths greater than 14,000
psi (96.5 MPa) at 28 days have been
attained. The slump loss problem can be
overcome by adding the admixture to the
concrete just before the concrete is placed.
AM S40 meets ASTM C 494 compliance
requirements for Type G, high-range waterreducing and retarding admixtures