Coral Limestone and Its Use - Part I - Coral Limestone and Its Use

Oct 4, 2026

Study examines coral limestone as a construction material used during World War II in Pacific military and naval bases, noting that although the results were often impressive, rigorous analysis shows coral to be a poor material in many respects. The work reviews theories behind the origin of coral deposits, classifies deposit types, and provides guidance for engineers on selecting suitable coral and processing methods. It also develops an explanation for the “setting up” phenomena and presents subsequent construction and surface stabilization approaches.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages95

Reading Time3 h 59 min

AccessFree to download

PART I

Section I: Introduction

Section II: The Formation of Coral Reefs

Section III: Construction Use of Coral Aggregate

Section IV: Conclusion

PART II

Introduction

Precipitation by Chemical Reaction

Necessary Experimental Work

Effect of Magnesium Carbonate

Chemical and Empirical Equations and Computations

Graph of Results

References

PART ICORAL LIMESTONE AND ITS USE PART IICHEMICAL STABILIZATION OF CORAL SURFACBS BY EDWARD A.FLANDERS Submitted in Partial Fulfillment of the Requirementsfor the Degree of Master of Science in Civil Engineering CALIFORNIA INSTITUTE OF TECHNOLOGY PASADENA,CALIFORNIA INDHX # PART I CORAL LIMESTONE AND ITS USE Section I: Introduction Section II: The Forma.tion of Coral Reefs 6 The Environment of the Polyp7 The Forms of Coral Reefs9 Foremost Theories of Reef Origin10 Recapitulation of Theories of Reef Formation in Regardto Sources of Construction Material 21 Natural Cementing Action24 Section III: Construction Use of Coral Aggregate33Type Coral Needed for Concrete Aggregate33Type Coral Needed for Asphaltic Concrete Aggre gate41Use of Water Bound Coral for Bases and Wearing Surfaces41Typical Sources of Soft Coral43The Analysis of a Typical Soft Coral46Grading and Compacting Base CourseThe Setting Up"Phenomena 外妇 8 Section IV: Conclusion 69 References PART II CHBMICAL STABILIZATION OF CORAL SURFACES 70 # Introduction Basic Consideration and Assumption70 Precipitation by Chemical Reation73 INDEX -continued Analysis of Assumptions Necessary xperimental Work Effect of Magnesium Carbonate Conclusion Chemical and Empirical Equations and Computations Graph of Results References Page 80 81 82 83 84 91 92 # PART I CORAL LIMDSTONE AND ITS USE Limestone of coral origin was abundantly used for construct-ion of Military and Naval bases in the Pacific during World War II。Its use was almost always spectacularly successful and contributedlargely to the successful operations against the Japanese Empire.Nevertheless a rigid analysis of the coral used reveels it to be arather poor material。This study briefly reviews the theoreticalconcepts of the origin of coral deposits and describes the nature ofthe various types of deposits.From this a guide is established toassist the construction engineer in finding the coral he needs,some-times a difficult problem。 The characteristics of coral deposits are explained and amethod of processing the coral for desirable results is given,alongwith the reasons for the method.Alogical explanation for the"setting up"phenomena is established. # PART II CHEMICAL STABILIZATION OF CORAL SURFACES ## ABSTRACT The possibility of chemical stabilization of the top surfaceof coral bases to prevent dust is explored.The process involved isanalysed and an order of magnitude of quantities determined.Thenecessary experiments to prove the process and tentative field pro-cedures are outlined. # SECTION I INTRODUCTION Limestone,one of the earth¹s abundant construction stones,is plentifully available in most tropical and semi-tropical watersof the world in the form of coral reefs. Throughout the Indian andPacific Oceans the bulk of the land formations are coral reefs.Theyoccur in three general forms;fringing reefs,berrier reefs,and atolls,and reefs originally formed in one of the above forms and later elevatedabove sea level. In the same general forms coral is also present inquantity in the Red Sea,the Caribbean and as a component of the Floridakeys. There is considerable evidence that meny of the present landlimestone formations,far removed from the present sea,originated ascoral reefs in the ocean.As an example,fossil coral of the MidDevonian period of the Paleozoic era have been identified in limestonedeposits of Ohio. In spite of the extensive use of land limestone and the wide-spread deposits of coral limestone the use of coral as constructionstone was generally frowned upon prior to World War II.It wasconsidered,at best,just a poor substitute to be used when othermaterial was not economically available.This erroneous concept wasso generally believed that Army and Navy Construction agencies evendiscussed the possibility of shipping acceptable grades of crushedrock for the construction of advanced beses on islands in the

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What kinds of methods and theories does the report cover for coral deposits?

The report reviews theoretical concepts of coral deposit origin, explains characteristics of deposit varieties, gives a processing method for desirable results, and provides an analytical explanation for the “setting up” phenomena.

Oct 4, 2026

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