LOGiMIX use case: carbon-disclosure response for a public-funded RFP

Carbon-disclosure response: baseline mix outside the procurement threshold, substitution path inside it A schematic showing two embodied-carbon bars on a vertical scale, with a horizontal procurement threshold line. The baseline mix bar exceeds the threshold; the substitution-path mix bar lands below it. PROJECTED EMBODIED CARBON PER UNIT VOLUME 0 spec threshold PROCUREMENT THRESHOLD Baseline mix design-as-drawn carbon-unconstrained Substitution path supplier mix below threshold SUNNYDAY TECHNOLOGIES · CONSULTING CASE EXAMPLE

Producing the embodied-carbon disclosure required by procurement language on a state-funded project, with a substitution path that brings the projected mix inside the spec threshold.

The situation

An architecture firm was responding to a state-funded coastal-protection RFP. The procurement language required an embodied-carbon disclosure on the structural mix, including methodology and a defensible projection for the proposal. The firm’s design team did not carry the chemistry expertise to produce the figures or write the methodology paragraph to the standard the reviewing engineer would expect.

What we did

A carbon forecast for the design-baseline mix aligned to EN 15804 conventions. A supplier-substitution path that brought the projected mix below the threshold in the spec. Reference language for the proposal describing methodology, assumptions, and the limits of a forecast versus an EPD. Coordination with the firm’s specifier so the substitution path mapped to specification language they could carry through construction documents. The carbon-forecast methodology is the same one LOGiMIX reports use, which makes the proposal-supporting deliverable directly comparable to anything else the firm’s clients buy off the cemforge.ai product page.

The outcome

The bid qualified. If the project is awarded, the alternate-mix path is projected to deliver a material reduction in spend on cementitious binder relative to a carbon-unconstrained baseline. The firm’s specifier added the carbon-forecast workflow as a standing step in their RFP response process.

This page describes a composite of common LOGiMIX engagements and does not refer to a specific past customer, project, or engagement terms. Outcomes vary considerably with project specifics and are not guaranteed. Sunnyday Technologies provides technical analysis. Sunnyday Technologies does not provide professional engineering, legal, regulatory, or financial advice. Engineering sign-off on any specific project remains the responsibility of the licensed engineer of record.