Exhibit 4.3(iv)

FOURTH AMENDMENT
TO
FINANCING AGREEMENT


		Fourth Amendment, dated as of October 3, 1996 to the 
Financing Agreement, dated as of April 13, 1994 (as amended, the 
"Financing Agreement"), by and among Lone Star Industries, Inc., 
a Delaware corporation ("LSI") and New York Trap Rock 
Corporation, a Delaware corporation ("Trap Rock" and together 
with LSI, each a "Company" and collectively, the "Companies") and 
The CIT Group/Business Credit, Inc. (the "Lender").

		The Companies and the Lender desire to permit certain 
additional Restricted Payments (as defined in the Financing 
Agreement), in each case on the terms and conditions hereinafter 
set forth.  Accordingly, the Companies and the Lender hereby 
agree as follows:

		1.	Definitions.  All capitalized terms used herein 
and not otherwise defined herein are used herein as defined in 
the Financing Agreement.

		2.	Investments.  Section 7.14(g) of the Financing 
Agreement is hereby amended by deleting subclause (xv) thereof 
and substituting in lieu thereof:

	"(xv) repurchases and/or redemptions by LSI 
of its common stock for an aggregate 
consideration not exceeding $40,000,000."

		3.	Restricted Payments.  Section 7.14(h) of the 
Financing Agreement is hereby amended by deleting subclause (iv) 
thereof and substituting in lieu thereof:

	"(iv) LSI may repurchase or redeem its 
common stock for an aggregate 
consideration not exceeding $40,000,000."

		4.	Conditions to Effectiveness.  This Amendment shall 
become effective only upon satisfaction in full of the following 
conditions precedent (the first date upon which all such 
conditions have been satisfied being herein called the "Effective 
Date"):

		(i)	The Lender shall have received counterparts of 
this Amendment which bear the signatures of Companies.

		(ii)	All legal matters incident to this Amendment shall 
be satisfactory to the Lender and its counsel.


		5.	Representations and Warranties.  Each of the 
Companies represents and warrants to the Lender as follows:

		(a)	Each Company (i) is a corporation duly organized, 
validly existing and in good standing under the laws of the State 
of Delaware and (ii) has all requisite corporate power, authority 
and legal right to execute, deliver and perform this Amendment, 
and to perform the Financing Agreement, as amended hereby.

		(b)	The execution, delivery and performance by the 
Companies of this Amendment and the performance by the Companies 
of the Financing Agreement as amended hereby (i) have been duly 
authorized by all necessary corporate action, (ii) do not and 
will not violate or create a default under either Company's 
charter or by-laws, any such applicable law or any contractual 
restriction binding on or otherwise affecting either Company or 
any of such Company's properties, and (iii) except as provided in 
the Loan Documents, do not and will not result in or require the 
creation of any lien, security interest or other charge or 
encumbrance upon or with respect to either Company's property.

		(c)	No authorization or approval or other action by, 
and no notice to or filing with, any Governmental Authority or 
other regulatory body is required in connection with the due 
execution, delivery and performance by either Company of this 
Amendment and the performance by the Companies of the Financing 
Agreement as amended hereby.

		(d)	This Amendment and the Financing Agreement, as 
amended hereby, constitute the legal, valid and binding 
obligations of the Companies, enforceable against the Companies 
in accordance with their terms.

		(e)	The representations and warranties contained in 
Section 6 of the Financing Agreement are correct on and as of the 
Effective Date as though made on and as of the Effective Date 
(except to the extent such representations and warranties 
expressly relate to an earlier date), and no Event of Default or 
Potential Default, has occurred and is continuing on and as of 
the Effective Date.

		6.	Continued Effectiveness of Financing Agreement.  
Each of the Companies hereby (i) confirms and agrees that each 
Loan Document to which it is a party is, and shall continue to 
be, in full force and effect and is hereby ratified and confirmed 
in all respects except that on and after the Effective Date of 
this Amendment all references in any such Loan Document to "the 
Financing Agreement", "thereto", "thereof", "thereunder" or words 
of like import referring to the Financing Agreement shall mean 
the Financing Agreement as amended by this Amendment, and (ii) 
confirms and agrees that to the extent that any such Loan 
Document purports to assign or pledge to the Lender, or to grant 
to the Lender a security interest in or lien on, any collateral 
as security for the Obligations of the Companies from time to 
time existing in respect of the Financing Agreement and the Loan 
Documents, such pledge, assignment and/or grant of the security 
interest or lien is hereby ratified and confirmed in all 
respects.

		7.	Consent.  The Lender hereby consents to LSI's 
abandonment of the trademark "Pyrament" in all countries except 
for Canada, Mexico and the United States.

		8.	Miscellaneous.  

		a.	This Amendment may be executed in any number of 
counterparts and by different parties hereto in separate 
counterparts, each of which shall be deemed to be an original, 
but all of which taken together shall constitute one and the same 
agreement.

		b.	Section and paragraph headings herein are included 
for convenience of reference only and shall not constitute a part 
of this Amendment for any other purpose.

		c.	This Amendment shall be governed by, and construed 
in accordance with, the laws of the State of New York.

		d.	The Companies will pay on demand all fees, costs 
and expenses of the Lender in connection with the preparation, 
execution and delivery of this Amendment, including, without 
limitation, the reasonable fees, disbursements and other charges 
of Schulte Roth & Zabel, LLP, counsel to the Lender.

		IN WITNESS WHEREOF, the parties hereto have caused this 
Amendment to be executed by their respective officers thereunto 
duly authorized as of the day and year first above written.

							COMPANIES


							LONE STAR INDUSTRIES, INC.



							By:  /s/ William E. Roberts	
							Title:    Vice President


							NEW YORK TRAP ROCK CORPORATION



							By:  /s/ William E. Roberts	
							Title:    Vice President


							LENDER

							THE CIT GROUP/BUSINESS CREDIT, 
							INC.


							By:  /s/ Frank Grimaldi	
							Title:  Vice President