In response to changes in the construction markets, the kilns at Permanente were made more efficient in order to reduce fuel costs and increase clinker output. Additionally, improvements were made in the limestone beneficiation process and the world’s largest rod ball mill, a distinction in itself, was added to the plant to beef up raw grinding.
The fleet of cement trucks, long bustling to deliver its product to numerous projects in Northern California, was phased out in 1968, in response to changes in customer requirements.
In 1967, the company mourned the passing of Permanente’s “Papa”. Henry Kaiser died in his sleep at 85.