Cements, Grouts & Mortars

72 Hour Bridge Replacement

896 bags of BluCem HE80 – High Early Strength Grout were recently used to grout the joints and anchor points of precast bridge segments at the new Frenchman’s Creek Bridge on the outskirts of Rockhampton, QLD. As the delivery of the replacement was 3 days, the grout had to possess properties that would ensure it […]

Utilising Calcium and Silica to Redefine What a Structural Sewer Lining Shotcrete Is

The BluCem ZeoGlass formulation includes the use of two, non-traditional concrete materials; Calcium and silica. These supplementary cementitious materials (SCMs) not only reduce our environmental impact, but the SCMs also improve the durability of the structural sewer liner.   Calcium: Conventional geopolymer concretes will not activate in the presence of Calcium ions, yet Calcium is […]

Modulus of Elasticity of Concrete & Mortars

Modulus of Elasticity of Concrete: From the wide range of opinions about the best performing materials to the dozens of available products, the selection of concrete repair materials is a highly complex and challenging task. Depending on the application, the key drivers of performance can be categorised as either; durability, structural or aesthetic performance. This […]

3 Features Which Have Increased ZeoGlass’ Design Life in Sewers from 15 Years to 40 Years

When combined, the three features below extend BluCem ZeoGlass’ design life for up to 3 times as long as regular OPC shotcretes. 1) Corrosion Resistant Recycled Glass BluCem ZeoGlass is unique in that more than 50% of the mix is recycled by-products, including glass aggregate which is totally inert to corrosion in acid sewer environments. […]

How to Apply a Structural Shotcrete Liner and A Protective Coating in A Single Step

In the past, relining a highly acid environment has required two essential steps: 1) A layer of structural shotcrete is applied to improve the asset’s overall strength. 2) A sacrificial CAC protective coating is applied to ensure the structure’s durability by resisting sulphuric acid and other highly corrosive chemicals. The interchanging of teams, machinery and […]

Shrinkage Part 3: How to Achieve Shrinkage Compensation

Successful shrinkage compensation coincides with each phase of shrinkage. In other words, the magnitude of expansion and the timing of occurrence should be equivalent to the predicted shrinkage for each stage of the grout or concrete’s life. To achieve shrinkage compensation, we use a variety of  techniques and products.         1. Reducing […]

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