10.	Revenues and Gross Profit

The Building Materials business includes the aggregates, cement, ready mixed concrete and asphalt and paving product lines. All cement, ready mixed concrete and asphalt and paving product lines reside in the West Group. The following table, which is reconciled to consolidated amounts, provides total revenues and gross profit by product line.

	Three-Months Ended
	March 31,
	2018			2017
	(Dollars in Thousands)
Total revenues:
Building Materials Business:
Products and services:
Aggregates	$	425,016		$	451,055
Cement		89,183			93,554
Ready mixed concrete		218,537			222,378
Asphalt and paving services		16,365			21,737
Less: interproduct revenues		(60,665	)		(60,710	)
Products and services		688,436			728,014
Freight		44,306			47,268
Total Building Materials Business		732,742			775,282
Magnesia Specialties:
Products and services		64,869			64,302
Freight		4,393			4,275
Total Magnesia Specialties		69,262			68,577
Total	$	802,004		$	843,859

Gross profit (loss):
Building Materials Business:
Products and services:
Aggregates	$	53,002		$	78,954
Cement		23,734			30,780
Ready mixed concrete		15,641			19,790
Asphalt and paving services		(7,639	)		(4,740	)
Products and services		84,738			124,784
Freight		(119	)		407
Total Building Materials Business		84,619			125,191
Magnesia Specialties:
Products and services		25,063			23,354
Freight		(1,174	)		(1,039	)
Total Magnesia Specialties		23,889			22,315
Corporate		1,884			(439	)
Total	$	110,392		$	147,067