Construction World September 2024

CHRYSO cement additives boost compressive strength and reduce production costs with enhanced cement performance.

The CHRYSO Quad Range is an alternative to river sand and addresses environmental concerns.

costs and can also reduce the carbon footprint of a given concrete where these alternative materials are closer to site. “We have also taken a leading role in the supply of additives to cement producers, with our in-depth understanding of cement production technologies,” says Dean. CHRYSO has been supporting cement producers to reach their sustainability goals, as cement manufacture is a leading contributor to carbon dioxide emissions. The company’s innovations allow more efficient clinker grinding, reducing power consumption in this energy intensive process. The additives permit increases in the compressive strength at the initial, mid term and later ages. The resulting enhanced performance can meet specific market needs such as reducing cement fineness or lowering unit production costs. The clinker factor can also be reduced by using increased levels of supplementary cementitious material (SCMs) while retaining cement performance. CHRYSO additives can be used for the grinding of most cements in all types of grinding systems, including those with ball mills, roll presses, and open and closed circuits, as well as horizontal roller and vertical roller mills.

The CHRYSO Quad Range enables the use of challenging sands, lowering costs and carbon footprint.

CHRYSO’s state-of-the-art concrete laboratory in Nairobi.

effectively into cement,” he notes. “Through extensive trials for the customer, CHRYSO East Africa was able to formulate a solution by finetuning one of our products; the result was a solution which overcame the customer’s challenge and is now being regularly used.” 

CHRYSO is able to develop specialised products for customers, to suit their applications. A customer in Mombasa, for instance, needed a solution for the use of coral limestone as a bulking agent in cement production. “Coral limestone is a notoriously difficult material to blend

31 CONSTRUCTION WORLD SEPTEMBER 2024