Portland cement had been imported into the United States from Germany and England, and in the 1870s and 1880s, it was being produced by Eagle Portland cement near Kalamazoo, Michigan, and in 1875, the first Portland cement was produced in the Coplay Cement Company Kilns under the direction of David O. Saylor in Coplay, Pennsylvania.
Semen Portland telah diimpor ke Amerika Serikat dari Jerman dan Inggris, dan pada tahun 1870-an dan 1880-an, produk ini diproduksi oleh semen Portland Eagle di dekat Kalamazoo, Michigan, dan pada tahun 1875, semen Portland pertama diproduksi oleh Coplay Cement Company di bawah Arah David O. Saylor di Coplay, Pennsylvania.