<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31411866</termId><termName>portland-pozzolan cement</termName><termType>PT</termType><termNote><![CDATA[ Portland cement blended with pozzolana. ]]></termNote><termCreatedDate>2026-03-30 20:50:44</termCreatedDate><relation><relationType>UF</relationType><termId>31411867</termId><termName>cement, portland-pozzolan</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411868</termId><termName>portland pozzolanic cement</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31374696</termId><termName>portland cement</termName><termType>PT</termType></relation></term>  </Zthes>