MaxCem Blended Cement

Improved Strength

MaxCem surpasses the strength of portland mixes at 28 days and beyond. MaxCem has been used successfully in concrete patching applications.

Improved Workability

Concrete produced with MaxCem improves the workability of the concrete and has better finishing characteristics.

Improved Placeability

Concrete produced with MaxCem improves the placeability of concrete. Standard vibration provides rapid consolidation with reduced segregation and honeycombing.

Reduced Permeability

MaxCem lowers the permeability of concrete. Lower permeability reduces the ingress of water and salts, increasing the durability of the concrete and protection of reinforcing steel.

Reduced Alkali-Silica Reaction (ASR)

MaxCem improves the resistance to ASR by decreasing the permeability of the concrete and preventing the migration of alkalis to reactive aggregates, and by decreasing the total alkali content in the concrete. Research has confirmed that the use of slag cement in proper proportions in concrete is effective in reducing the potential for excessive expansion of concrete due to ASR. Confirmation testing should be performed on a specific project basis.

Increased Flexibility and Improved Performance Through Ternary Blends

MaxCem can be combined with fly ash to maximize economics while providing improved performance over traditional straight cement concrete.

MaxCem can be combined with silica fume to deliver high performance concrete. This enhances reinforcement protection from chloride corrosion while increasing the placeability, finishability and strength of the concrete mix.

Eliminate Need for Additional Silos

MaxCem can be used in virtually all concrete applications, eliminating the need for additional silos.

Improved Night Visibility and Color Options

MaxCem’s lighter color improves night visibility and accommodates the use of color additives.

Environmentally Friendly Alternative

As a replacement for portland cement, MaxCem reduces the amount of energy needed to produce a yard of concrete; thereby, generating overall savings of our natural resources.

Properties of "Fresh Concrete"

  • Water requirements – Concrete mixes containing these products generally require less water for a given slump.
  • Air Content – When changing mix ingredients, it is prudent and recommended to check air-entraining dosage and adjust as necessary.
  • Workability – These cements generally improve workability of concretes with equal slump.
  • Segregation and Bleeding – Concrete containing these products can have lower bleed water and slower bleed rates. There are no segregation issues related to this product.
  • Setting Time – Concrete containing these products may have slightly extended set times especially at lower ambient/concrete temperatures. Set time is very dependent upon temperature.
  • Finishability – Finishability of concrete is generally improved with the use of these products.
  • Pumping – Concrete containing these cements generally has improved pumpability.
  • Proportioning – These products have a slightly lower specific gravity than normal portland cement. Proper mix proportions should be verified.
  • Curing – Proper curing of all concrete is essential and should commence immediately after finishing.

Properties of "Hardened Concrete"

  • Strength – Generally, later strengths are enhanced. Early strengths can be lower, especially in cooler temperatures. This is applicable to compressive and flexural strengths.
  • Drying Shrinkage – Effect is generally small and of little practical significance.
  • Permeability and Absorption – With proper curing, concrete containing these cements is generally less permeable and has lower absorption rates.
  • Alkali-Aggregate Reactivity – Cements containing slag can provide several benefits to help mitigate ASR (alkali silica reactivity) in concrete.
    The ability of these products to mitigate ASR in concrete needs to be assessed on an individual basis.
  • Resistance to Sulfate Attack – This product can be used as part of a system that can improve the resistance of concrete to sulfate attack. MaxCem, individually, should not be considered as adequate protection against sulfate attack. Consult with your local Lafarge representative before using MaxCem for this purpose.
  • Concrete Color – Concrete made with these products is generally lighter in color.
  • Corrosion of Embedded Steel – There is a direct relationship between permeability and corrosion resistance. Therefore, corrosion can be decreased as a result of improved permeability as described above.
  • Carbonation – With proper curing, carbonation should not be a concern.
  • Freeze-Thaw Resistance – Properly designed, finished and cured concrete with an adequate air-void system is the same with or without these cements.
  • Deicer Scaling – Properly designed, finished and cured concrete is resistant to deicer scaling. These products require the same curing as concrete containing normal portland cement.
  • Chemical Resistance – Reduced permeability as described above can slightly improve chemical resistance.
  • Soundness – The volume stability of cementitious paste is unaffected by these cements.

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